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The beginnings of ecological thought in the Renaissance: an account based on the Libri picturati A. 18–30 collection of water-colours

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During the Renaissance ecological thinking emerged both in printed scientific works and in pictures showing plants against the background of their natural environment. A unique source for the history of plant ecology is the Libri picturati A. 18–30 collection of water-colours kept at the Jagiellonian Library in Cracow (Poland). This collection consists of 13 volumes of plant pictures, and contains about 1,800 images illustrating more than 1,000 taxa mainly from north-western Europe and the Mediterranean region, but also from Asia and America. Some of these pictures match with woodcuts in various works by famous Flemish botanists, mainly Charles de l'Écluse (Carolus Clusius) (1526–1609). Both the illustrations and their short annotations provide a synthetic review of the ecology of the Renaissance period. The paper deals with ecological issues which are found in the collection such as information on the climatic and edaphic requirements of some species, on plants occurring in various habitats and plant communities, plants representing principal growth forms, descriptions of particular adaptations to specific living conditions, for example the halophyte community of sea coasts or the parasitic flowering plants, and phenological observations. These trends can also be seen in printed publications of that time, and this collection mirrors them especially closely.
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Archives of natural history 34 (1): 87–108. 2007 © A. Zemanek, A. Ubrizsy Savoia & B. Zamanek 2007.
The beginnings of ecological thought in the
Renaissance: an account based on the Libri picturati
A. 18–30 collection of water-colours
ALICJA ZEMANEKA, ANDREA UBRIZSY SAVOIAB and BOGDAN ZEMANEKC
A J. Dyakowska Botanical Museum and History of Botany Research Unit, Botanic Garden, Institute of Botany,
Jagiellonian University, 31-501 Cracow, Kopernika 27, Poland (e-mail: zemaneka@ib.uj.edu.pl).
B Botanic Garden, Department of Plant Biology, University ‘La Sapienza’ of Rome, Largo Cristina di Svezia 24,
I-00165 Roma, Italy (e-mail: andrea.ubrizsy-savoia@uniroma1.it).
C Botanic Garden, Institute of Botany, Jagiellonian University, 31-501 Cracow, Kopernika 27, Poland (e-mail:
zemanekb@ib.uj.edu.pl).
ABSTRACT: During the Renaissance ecological thinking emerged both in printed scientific works and
in pictures showing plants against the background of their natural environment. A unique source for the
history of plant ecology is the Libri picturati A. 18–30 collection of water-colours kept at the Jagiellonian
Library in Cracow (Poland). This collection consists of 13 volumes of plant pictures, and contains about
1,800 images illustrating more than 1,000 taxa mainly from north-western Europe and the Mediterranean
region, but also from Asia and America. Some of these pictures match with woodcuts in various works
by famous Flemish botanists, mainly Charles de l’Écluse (Carolus Clusius) (1526–1609). Both the
illustrations and their short annotations provide a synthetic review of the ecology of the Renaissance
period. The paper deals with ecological issues which are found in the collection such as information on
the climatic and edaphic requirements of some species, on plants occurring in various habitats and plant
communities, plants representing principal growth forms, descriptions of particular adaptations to specific
living conditions, for example the halophyte community of sea coasts or the parasitic flowering plants,
and phenological observations. These trends can also be seen in printed publications of that time, and
this collection mirrors them especially closely.
KEY WORDS: Renaissance botany – plant pictures – history of ecology – Charles de l’Écluse – Carolus
Clusius.
INTRODUCTION
Knowledge of the relationships between plants and the environment, and of the seasonal
changes in plants, has been, since the oldest times, formulated in close relation to agricultural
and horticultural practices, but ecology was separated as a distinct branch of biological
sciences only in the nineteenth century. The early precursors of ecological thinking were
ancient scholars, particularly the founder of botany Theophrastus of Eresus (c. 370–285BC),
who discussed, for example, the relationships of plants to the climate and soil condition,
listed species peculiar to various types of habitat, and showed awareness of plant communities
(Morton, 1981: 41; Greene, 1983: 1: 195–198). During the Renaissance, when the rediscovery
of ancient knowledge was combined with new learning about the flora of Europe, as well
as with exploring newly-discovered continents, ecological thinking emerged both in printed
scientific treatises as well as in pictures showing plants against the background of their
natural environment (Morton, 1981: 125–126; Piekiełko-Zemanek, 1986; Ubrizsy Savoia,
1998; Zemanek, 1998b: 32; Dobat, 2001: 16–17).
88 LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
Figure 1. Mandragora officinarum (30/85), one of the most famous ‘magic plants’. The annotation shows that its
author did not support the old beliefs connected with this herb: “Grows in the mountains, abundantly in Gargano
Mountains in Apulia; and it is sown and cultivated carefully in the gardens for its false miraculous properties.
With us fruit ripens in July and August”. © Jagiellonian Library, Graphics Department, Cracow, Poland.
89LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
LIBRI PICTURATI
A unique source for the history of plant ecology is Libri picturati A. 1830, a collection of
water-colours made mainly in the Netherlands in the second part of the sixteenth century,
kept in the Graphics Department of the Jagiellonian Library in Cracow (Poland).1 More
than 1,800 specimens are represented, comprising over a thousand taxa mainly from north-
western Europe and the Mediterranean region, but also from Asia and America. The pictures
are of such excellent quality that many of them could be used as illustrations of modern
books (Figure 1).
Most of the pictures have annotations, written in different scripts, with the following
information: plant names in Greek, Latin, Flemish, French, German and Italian, references
to the works of ancient and Renaissance authors, and notes in Latin about localities, plant
distribution, ecology, and other subjects (published in Latin2 by Ramón- Laca, 2001).
The volumes do not contain any indication of the original owners of the collection. Since
many pictures match with woodcuts in various works by the famous Renaissance botanist
Charles de l’Écluse (Carolus Clusius) (1526–1609), some authors have attributed them to
L’Écluse (Arber, 1988: 229–231; Whitehead et alii, 1989). According to recent studies, the
set of water-colours was a collaborative work by painters, plant-lovers who sponsored the
paintings, and botanists (including L’Écluse) who annotated the pictures. Wille (1997), who
has carefully examined L’Écluse’s life and correspondence, put forward the idea, supported by
Egmont (2005), that a large proportion of the pictures were produced by order of L’Écluse’s
friend, Karel van Sint Omaars (Charles de Saint Omer) (1533–1569), a wealthy plant-lover
(his other name was Ranoutre seigneur de Moerkercke, Dranoutre or Reynoutre). In his
castle at Moerkercke (now in Belgium), he had a collection of curiosities and also a garden
containing useful plants, both of native and foreign origin. The painters included Jacques
van Corenhuyse (whose monogram can be found on three pages) and probably Pieter van
der Borcht (c. 1535–1608) working for Christophe Plantin (1514–1588). L’Écluse stayed at
the castle in Moerkercke, probably annotated some of the pictures, and used more than one
hundred of them as illustrations for his flora of Spain and Portugal, Rariorum aliquot stirpium
per Hispanias observatarum historia (L’Écluse, 1576), and a later work Rariorum plantarum
historia (L’Écluse, 1601) (Ramón-Laca, 2001; Egmont, 2005). Some of the pictures were also
published by Rembert Dodoens (1517–1585) in Stirpium historiae pemptades sex (Dodoens,
1583) and Matthias L’Obel in Kruydtboeck (L’Obel, 1581). According to Wille (1997), the
collection was supplemented and re-arranged after 1595 by Karel van Arenberg (1550–1616),
Prince and Count of Arenberg, an eminent amateur botanist, who augmented the collection
with foreign plants which did not occur in the Netherlands. He also probably instructed that
the collection should follow the method used by Jacques Daléchamps (1513–1588), author
of Historia generalis plantarum (1586, 1587). Another hypothesis about the origin of the
collection, put forward by Swan (1998), attributes the water-colours to Dirck Outgaertsz
Cluyt (Theodorus Clutius) (1546–1598), but this idea is less well documented.
The water-colours in Libri picturati reflect a synthesis of art and science, so vital when
they were produced (Zemanek and de Koning, 1998). Thus they are of interest to both
art historians and botanists. For a long time the collection was not available to scholars.
Rediscovery of the Libri picturati by Whitehead (Whitehead et alii, 1989) initiated studies
of these unique pictures. Historians and art historians attempted to discover the date and
place of their origin, and the names of the people associated with them (Swan, 1998; Wille,
1997; Egmont, 2005). Botanists are interested in identifying the plants depicted in this painted
90 LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
“herbarium”. So far only the orchids (Künkele and Lorenz, 1990), the Umbelliferae (Apiaceae)
(Baumann, 1998), and heathers (Erica spp.) from Spain (Ramón-Laca and Morales, 2000)
have been examined from a taxonomic point of view.
In 2002 the Libri picturati Project was started, involving interdisciplinary studies by an
international team.3 As well as research into the origins and history of the collection, and its
role in the history of botanical illustrations, scholars will also investigate the plant groups,
the morphology of plants, phytogeography, ecology, useful plants, and connections between
the Libri picturati and l’Écluse’s garden in Leiden. It is intended to produce an annotated
facsimile which will illustrate the combination of art and science, so characteristic of the
Renaissance period.
ECOLOGICAL INFORMATION IN LIBRI PICTURATI A. 1830
Pictures of plants
In a few cases we have typical ecological pictures showing species from the same habitat on
one page. However, this set of realistic water-colours, illustrating various growth forms and
diverse ecological adaptations to living conditions, contains a voluminous ecological content
even though contemporary authors were not aware of most of these adaptations. Almost all
plants are painted at the flowering stage, with fruits quite often added, sometimes also seeds,
which provide quite a rich set of phenological data.
Annotations
For more than half of the species ecological data were included, such as habitats, time of
flowering and fruit-bearing, as well as possible cultivation in gardens, and requirements
pertaining to soil, light or similar. In some cases more general observations are provided.
The most extensive written information is for species from north-western Europe,
particularly Belgium and the Netherlands, and the detailed descriptions of habitats and
the geographical names supplied (Frisia, Holland, and others) confirm that the plants were
observed in their natural surroundings. Sometimes, the notes state “in our area” or “here it
is cultivated in gardens”. In two cases, the specific dates of observations were recorded:
Cypripedium calceolus4: “This plant was seen and observed ... at the beginning of June 1564” (22/34)5
Prunus avium ‘Plena’: “In most cases it does not bear fruits, but not always, because this year, being 1564,
some of the Cerasus trees had fruits” (20/79).
Arrangement of species in particular volumes
To a certain extent, ecological information is also coded by the way species are grouped in
individual volumes. Some volumes, or their fragments, include smaller or larger groups of
plants from certain habitats: for example, in A. 18 there are many species of the herbaceous
layer of deciduous forest, as well as ruderal and meadow species: in A. 19 and 24, among
others, plants of dry meadows, grasslands and shrub communities: in A. 26, aquatic and bog
plants: in A. 18 and 23, synanthropic plants, those occurring in habitats created by or altered
by humans. That could reflect the arrangement of the collection according to the method of
Daléchamps (1586, 1587), who distinguished such ecological groups as “plants growing in
marshes, ... in rough, rocky, sandy, and sunny places, ... in shady, wet, marshy, and fertile
places, ... by the sea, and in the sea itself, climbing plants, spiny and prickly plants, plants
with bulbs, and succulent and knotty roots” (Arber, 1988: 173). However, in most volumes
91LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
the species of various habitats are intermixed, and habitat information is contained in captions.
It should be emphasised that binding of the pictures into volumes was done after the actual
painting of the pictures had taken place.
PLANTS AND THE ENVIRONMENT
Climate
There are no direct references to climate. The descriptions of habitats allow for the conclusion
that the authors were aware how plants depended on light and water. These two factors were
most often mentioned when habitats were described. Sites with good insolation (sunny places)
were also defined as warm, whereas the shaded sites were referred to as cold or moist.
Euphrasia stricta: “in meadows and hilly sites with a lot of sunshine” (24/42).
Anthericum liliago: “Occurs in elevated sites, very sunny, under thin and small shrubs” (22/24).
Lavandula angustifoliaAlba’: “In our area, it is sown in gardens, and grows best in a very sunny place”
(19/23).
Asplenium trichomanes: “It likes moist and overshadowed places, growing abundantly on old fences, often on
coarse walls and rocks” (18/2).
The effect of the wind was noted in one description: Milium effusum “persists for many
years, but stays only in places sheltered from winds” (23/49). The information given most
often is about moisture status, referred to either in general terms when a habitat is simply
given as a moist or dry site – for example in the note that Phyllitis scolopendrium “favours
places which abound in water” (18/4) – or in more detailed descriptions of habitats which
are numerous (see below). The tendency to look for more generalised statements can also
be exemplified by this note: “all Arum species grow in cold and shady places” (Arum
maculatum: 22/37).
Soil
Usually, two types of soil were distinguished: fertile (rich) and infertile (poor).
Centaurea centaurium: “on fertile soil ... in our area it is sown in gardens” (18/50).
Isatis tinctoria, Corylus maxima: “prefers fertile soil” ( 23/107, 20/84).
Senecio fluviatilis: “on mountain and fertile soil” (18/39).
Prunus armeniaca: “Sown in gardens and vineyards. Prefers fertile and moist soil” (20/76).
Erophila verna: “in fields and on hills, on poor soils” (18/3).
The colour or type of soil were mentioned rarely:
Vaccaria pyramidata: “prefers fertile soil, pale, muddy fields near the Mosa river, also sown in gardens”
(21/90v).
Ranunculus flammula: “Occurs in moist and clayey sites” (26/1).
Spergula arvensis: “It occurs either spontaneously among sown cultivated plants, or is itself sown in fields,
most often on dry and black soil” (18/85).
Sometimes descriptions refer to sandy sites, for example:
Veronica spicata: “Occurs in wild and sandy sites, on edges of fields and forests” (18/73).
Coronopus squamatus: “along roads, on embankments, in desert and sandy sites” (18/82).
Erica tetralix: “in plains and sandy hills, it also favours wooded [areas]” (20/28).
Most information pertained, however, to the level of moisture in the environment, and the
description of habitats with different moisture levels were diverse (see below).
92 LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
TYPES OF HABITATS AND ASSOCIATED SPECIES
Aquatic plants
Most aquatic habitats are those of inland fresh waters: ditches, slow-flowing rivers and canals.
Among the pictures of aquatic plants, there are some of floating plants or those rooted to
the bottom of bodies of water, for example Nymphaea alba (26/22), and others:
Nymphoides peltata: “in muddy places and in stagnant waters of Holland” (26/19).
Lemna trisulca, Hydrocharis morsus-ranae, Lemna cf minor: “these three plants often occur together, floating
in stagnant waters” (26/23).
Hottonia palustris: “Floating in stagnant waters” (29/42).
Among the floating plants there was one carnivorous species, Utricularia vulgaris (29/40),
with the following annotation: “never described before” (perhaps it is the first image of this
species ever painted). Even though it was realistically represented, the trapping vesicles on
submersed leaves were not shown.
Bog plants
Plants growing in shallow waters along river and canal banks, as well as in areas occupied by
wetlands and bogs, are represented by a significant number of species, and the descriptions
of their habitats are similarly diversified, for example:
Carex pseudocyperus: “Occurs in boggy, moist sites” (19/25v).
Lycopus europaeus: “In our area it is common, occurs in boggy sites and along canals” (24/11).
Veronica beccabunga, Rorippa amphibia: “on canal banks, along stagnant or slow-flowing waters” (26/87,
26/88).
Ranunculus aquatilis: “It is a small herb of marshes, frequent in courtyards which are irrigated in winter”
(26/29).
Oenanthe fistulosa: “in wet meadows and near stagnant waters and in sites which are waterlogged in winter
and dry in summer” (26/90).
For Glyceria cf fluitans (26/13) extended information was given: “Emerges in spring in
shallow and boggy waters where it floats at their surface and its name derives from it, later,
however, it becomes erect, forming much elongated flexible shoots”.
There is a rich set of plants occurring along banks of rivers, canals and fresh-water
ditches, for example:
Iris pseudacorus: “muddy and moist sites” (22/67).
Fraxinus excelsior: “Moist sites, river and canal banks” (27/18).
Lythrum salicaria: “in waters, bogs, willow scrub” (26/52).
Pulicaria dysenterica: “in wet areas, especially along roads, where water trickles from fields, creating a wet
habitat and flows further to nearby canals” (26/40).
In one description there is a reference to the expansion of a species: Epilobium hirsutum:
“Occurs naturally in very moist meadows, near ditches and streams, penetrates whenever it
may grow much larger and widespread” (26/50).
Sea coast: halophytes
There are numerous pictures of halophytes, plants which occur mainly along sea coasts
and thus capable of tolerating high levels of soil salinity; these pictures are probably the
first of this kind. The fact that they were observed on the coasts of Holland and Zealand is
confirmed in some of the captions (27/98 (Figure 2), 23/96, 26/75. In Libri picturati fifteen
93LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
Figure 2. Cakile maritima (27/98), a halophyte occurring along coasts of north-western Europe: “Occurs on the
coast of Holland, near the town Sceuenynghe, with thick leaves. The whole plant is very bitter”. © Jagiellonian
Library, Graphics Department, Cracow, Poland.
94 LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
Figure 3. Salicornia europaea and Suaeda maritima (24/31), halophytes from coasts of north-western
Europe. The annotation is one of the earliest containing information on the halophyte community: “They
like very much saline soils and sea coasts, and grow in stable community, to such degree that many people
considered, wrongly, there were not two, but one plant, and express such opinion”. © Jagiellonian Library,
Graphics Department, Cracow, Poland.
95LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
halophytes were depicted, thirteen of them with relevant references to their habitats (Table
1). Only two species whose habitat was described as “sea coast” are not now considered
as halophytes: Onobrychis sp. (O. viciaefolia or O. arenaria: 23/84) and Eriophorum
angustifolium (24/8).
Three plants were depicted under two names on 24/31 (Figure 3). Under “Kali et
Alkaly” there are two plants which are difficult to identify because no flowers are shown
and there is no information about where they are from. If we suppose that they are from the
Mediterranean area they could be identified as the diploid and tetraploid forms of Salicornia
europaea. The third plant is labelled “Anthyllis Quarta”; it is Suaeda maritima. There is also
a note, perhaps the earliest of this kind, about a community of sea-coast halophytes: “They
like very much saline soils and sea coasts, and grow in stable community, to such degree
that many people considered, wrongly, there were not two, but one plant, and express such
opinion”. This annotation indicates as association similar to that formed by the halophytes
Kochia hirsuta and Suaeda splendens found on the coast of Languedoc, defined during the
early twentieth century by Braun-Blanquet (1931, 1933, 1947).
Table 1. Halophytes depicted in the collection Libri picturati A. 1830.
Taxon vol./folio Habitat and locality
Anthyllis vulneraria subsp. maritima 21/89 “on sea coast and saline sites”
Aster tripolium 27/96 “at sea coast sites pounded by sea waves”
Atriplex littoralis 28/26 “on fences and in sea-coast regions. In Cilicia it
provides high yield”
Cakile maritima 27/98 “on the coast of Holland, near the town
Sceuenynghe”
Crithmum maritimum 29/38 “on sea-coast and rocky sites, sown in gardens”
Eryngium maritimum 27/51 “in wild sites and meadows, most often on sea
coasts, however”
Glaux maritima 23/96 “on sea-coast and saline areas. Known by the
residents of Zealand”
Hieracium umbellatum 28/31 “somewhere on the sea coast”
Salicornia europaea 24/31 see main text
Salsola kali 27/95 no information
Senecio crithmoides 27/96v no information
Suaeda maritima 24/31, 27/95v for 24/31 see main text; 27/95v has no
annotation
Thalictrum minus subsp. dunensis 26/75 “in sea-coast sites and on saline fields, known
in Zealand”
Thalictrum minus subsp. minus 26/76 “found on saline fields on the sea coast,
common in Zealand”
Triglochin maritima 26/14 “in sea-coast sites and very moist sites”
96 LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
Forests
Information about forests is not detailed, usually being limited to the simple term forest.
Sometimes this is expanded with some additional information about the level of light or
moisture, or frequency of occurrence. Examples include:
Maianthemum bifolium: “in shady forests” (18/69).
Solidago virgaurea, Geranium rotundifolium, Daphne mezereum: “shady, moist forest” (18/40, 18/41,
20/38).
Anemone nemorosa: “in forests and on canal banks, in overshadowed and more moist places” (26/34v).
Betula cf pendula: “Occurring often in forests and in sites not subject to cultivation; prefers cold areas”
(27/25).
The forest trees were only rarely named; for example, Hieracium murorum occurs in “shady
forests, particularly on poor soil, often beneath an oak canopy” (28/28).
Meadows
“Meadow” is noted in the annotations of many species, sometimes with a more detailed
indication of the type of meadow: moist, boggy, fertile.
Cardamine pratensis: “on moist meadows and near canals and stagnant waters” (28/99).
Veronica serpyllifolia: “in moist places and meadows” (18/72).
Veronica chamaedrys: “mostly in meadows which are overshadowed or on slopes” (18/90).
Here are many pictures of thermophilous plants, both from dry meadows and xerothermic
communities. The dry meadows are sometimes described as “wild, inhospitable places”. In
the annotations, however, there are significantly fewer expressions for dry meadows than for
wet ones: Ranunculus bulbosus “Prefers dry and sandy meadows” (26/32). Four members of
the pea family (Fabaceae) depicted on 23/117 are correctly grouped according to the type
of meadows in which they grow: “Occurs abundantly in fertile meadows” (Trifolium repens,
T. pratense) and “Emerges on dried fields and meadows” (Lotus corniculatus, Trifolium
dubium).
Edges of forests, meadows and fields, and hedges
The edges of forests, meadows and fields and places “near fences” (“iuxta sepes”) (referring
generally to species which form hedges or those growing at the base of fences) are set
distinctly as a separate group. The abundance of this type of semi-natural habitat testifies to
the remarkable level of anthropogenic transformation of the landscape at that time.
Veronica spicata: “in wild sandy places on the edges of fields and forests” (18/73).
Verbascum cf lychnitis: “Occurs naturally on embankments and along the edges of fields and forests”
(18/60).
Rhamnus cathartica: “at fences and forest roads” (20/14).
Cirsium vulgare, Carduus crispus: “along roads, fences, on the edges of fields and forests, particularly in moist
and fertile places” (27/41, 27/42).
Mountains
There are many references to mountains, with most of the notes containing only general
information; for example “mountains” (Polygonatum multiflorum, P. verticillatum: 30/49);
“mountains, forests” (Veronica officinalis: 18/74). There are no pictures of plants occurring at
high elevation; most of montane plants depicted inhabit low elevations, in the areas covered
by forests, shrubs or meadows.
97LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
Figure 4. Urtica dioica (18/19), stinging nettle: “Emerges everywhere, by walls fences and in shrublands. Anyone
can recognize it even in the dark only by touching”. © Jagiellonian Library, Graphics Department, Cracow,
Poland.
98 LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
Paris quadrifolia: “in mountains and shady forests” (18/68).
Cornus mas: “In nature, they prefer mountains and hills, and they are also sown in gardens” (20/87).
Juniperus communis: “Prefers mountains and hills, in our area it is rare” (27/15).
Sometimes the notes include additional remarks about light conditions, moisture levels and
fertility of soil.
Castanea sativa: “Prefers mountain and shady sites” (27/4).
Centaurea centaurium: “Emerges spontaneously in mountains, in well-shady and overgrown sites, on fertile
soil” (18/50).
Sorbus aucuparia: “Prefers mountain sites, dry and overshadowed. In our area it occurs rarely” (27/32).
Cupressus sempervirens: “Prefers mountains, in our area it is an alien plant, however, it is cultivated in
gardens” (27/12).
Peucedanum officinale: “Emerges spontaneously in mountains; in our area it is rare, tended only in gardens”
(29/27).
Occasionally the annotations describe mountain species descending into lowlands – Picea
abies “likes mountains, but also descends into valleys” (27/11) or trees which form
mountain forests Taxus baccata grows on “rocky mountains, precipices, between firs and
spruces” (27/16).
Mountain ranges of various European regions, of France, Germany, Switzerland and
Italy, are named: Buxus sempervirens “common in Switzerland, Burgundy” (20/19); Acer
pseudoplatanus “in the higher mountains of Germany, in Belgium it occurs rather rarely on
field boundary strips” (27/26); Laburnum anagyroides “common in the mountains of Italy
and Narbone in southern France” (27/34); Glycyrrhiza glabra and Mandragora officinarum
(see Figure 1) are “abundant in Apulia, particularly on Monte Gargano” (20/52, 30/85).
Anthropogenic habitats: synanthropic plants
Numerous notes occur about species growing in anthropogenic habitats (particularly in 18
and 23). These are indicative of the abundance in sixteenth-century Europe of plants that
have for a long time accompanied human beings and which grow abundantly near human
settlements. For many, the descriptions of habitats are accurate enough to designate the plants
as ruderal (accompanying human settlements) or segetal (occurring as weeds in cultivated
fields and gardens).
Ruderal, or nearly ruderal, habitats include the surroundings of buildings, waste lands,
sites along fences and roads. Examples of ruderal species depicted include Urtica dioica
(18/19) (Figure 4) and Leonurus cardiaca (18/21), as well as
Heliotropium europaeum: “elsewhere, in inhospitable places, on squares, along roads and home yards, thus in
dry and sandy places; in our area it is indeed only found in gardens” (18/98).
Sisymbrium officinale: “everywhere in courtyards, archways of buildings and debris and along roads”
(28/95).
In the case of segetal plants, the habitats were only referred to in general terms as
“cultivated fields” or “plantations” without any precise identification of the type of plant
cultivated there.
Kickxia elatine, K. spuria, Trifolium arvense: “in cultivated fields and plantations” (18/13, 18/14, 23/68).
Spergula arvensis: “Emerges spontaneously in sown fields, most often on dry, black soil; much sought after
as fodder for pack-animals” (18/85).
Damasonium stellatum: “Occurs in Holland, but it is a nuisance to cowherds. Our cattle become fat after
grazing on it but soon after suffer diseases and waste away” (26/47).
99LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
Rhinanthus sp.: “Grows in some places on high-elevated meadows and among sown cultivated plants, not
without detriment to their seeds” (26/67).
Apera spica-venti: “Appears among cultivated plants, not without detrimental effects thereto, and occurs often
in the fields and along fences, most often in years with low yields and a lot of rain” (23/48v).
Only occasionally were the cultivated plants indicated: cereals, legumes, vegetables, and
vines, for example.
Melampyrum arvense: “Grows in wheat fields, mostly on fertile soil” (23/56).
Securigera securidaca: “Elsewhere emerges naturally in fields and among barley and lentil and in our area it
is found only in gardens” (23/70).
Veronica agrestis, V. triphyllos, V. hederifolia subsp. hederifolia, V. arvensis: “occur spontaneously
among vegetables and legumes [inter olera et legumina]” (18/9: see also 18/10, Stellaria media, Arenaria
serpyllifolia).
Mercurialis annua: “in vineyards and gardens, among vegetables” (27/68).
For two spurges, depicted together on one sheet (27/85v), their habitat differences are correctly
identified: Euphorbia helioscopia grows “in vineyards and among vegetables and legumes”
whereas E. peplus occurs “for the most part around towns and on debris”. For many species
the habitat was identified as boundary strips (baulks between cultivated fields), for instance
for Melampyrum pratense (23/57) and Centaurea cyanus (23/67).
In gardens, besides the plants deliberately cultivated, there grew, as today, an entire array
of weeds not at all desired by gardeners, as shown by this annotation for a very familiar weed:
Aegopodium podagraria “occurs for the most part spontaneously in gardens and clearings
in forests, where it propagates itself very widely even to a nuisance” (18/36).
Silybum marianum (27/53), a Mediterranean species cultivated in gardens, is noted as
regressing to the wild state: “It occurs spontaneously in most gardens, around ruins and
along fences”.
Cultivation of plants and habitat requirements
For many species, information was given about cultivation in gardens and fields. Sometimes a
detailed explanation was added, such as when a plant was cultivated for medicinal, decorative
or botanical research purposes. In some cases, the requirements of successful cultivation
– soil type (fertile or poor), moisture level (moist or dry habitat) and light conditions (sunny
or shady site) were also given.
Fagopyrum esculentum: “Likes poor and weak soil, but can also grow in fertile soil. Sown between mid-spring
and later throughout almost all of the summer; matures in the eighth or ninth week after sowing” (23/40).
Setaria italica: “Likes loose soil, thoroughly tilled out but can also grow in sandy places. Sown in spring and
cut – in very warm regions after 40 days. In our area, the time for sowing is in April, while the maturing
time comes in June” (23/51).
Cucumis melo: “Likes sunny places, fertilized well, and soil tilled thoroughly” (28/74).
In a few cases there is information of other kinds:
Mentha aquatica: “Sown in gardens and spreads easily through roots and suckers. It dislikes manure, as well
as the sun” (28/106).
Ocimum basilicum, O. basilicum var. minus: “all basils are entirely summer herbs and intolerant of frost”
(28/111).
The cultivation of two American plants in sixteenth-century European gardens is confirmed
by such annotations as that on the portraits of Phaseolus cf vulgaris (23/87: kidney bean,
100 LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
Figure 5. Phaseolus cf vulgaris (23 /87) from South America, introduced to Europe in the sixteenth century, and
cultivated for its edible pod (legume): “It likes fertile soil and sunny places. In our area it is sown in gardens in
April, where it can withstand ground frosts well; beans mature almost always in Autumn”. © Jagiellonian Library,
Graphics Department, Cracow, Poland.
101LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
French bean) (Figure 5), and of Celosia argentea Plumosa Group (25/60: cockscomb) which
was noted as liking “moist places and sticky soil (solo tenaci)”.
Errors and inaccuracies in habitat descriptions
For a few species, the information on habitats does not agree with current knowledge. As
well as the two halophytes, noted above, Helichrysum stoechas (29/45) was stated to grow
on slopes and stream banks; this southern European species occurs in macchia, garrigue and
in dry meadows. Umbilicus rupestris (22/45) was noted as a plant which “likes sea-side and
stony places”; that is only partly true, as this species occurs spontaneously on humid shady
rocks and on old walls. Aristolochia rotunda (19/61) was stated as occurring on rich soils,
instead of uncultivated arid sites, and Artemisia vulgaris (19/39) as occurring on sea coasts
although that habitat is not typical for that species.
Growth forms (life forms)
Most of species represented in Libri picturati are herbaceous plants. Trees, shrubs and
shrublets form a much smaller group (chiefly in 20 and 27), the same as creepers (several
dozen species in 23, and also some in 19 and 21).
The interest in plants with beautiful flowers, which were cultivated or introduced into
cultivation in the second half of the sixteenth century, resulted in an over-representation of
Spring geophytes, plants growing in deciduous forests and flowering in early Spring when
the absence of leaves allows the penetration of sunlight. These plants, whose shoots die after
producing seeds in early Summer, persist for the rest of the year in the form of underground
organs – bulbs, tubers and rhizomes. In horticulture, these organs are often used for vegetative
reproduction. Volumes 21, 22 and 30 contain drawings of geophytes originating from various
parts of Europe and, much less often, from Asia and America.
Phenology
Phenological data are provided in the images as well as in the captions (in about a quarter
of the species). Usually, the pictures show a plant in flower, often also bearing fruits and, in
many cases, also producing seeds. The intention of the authors to represent plants realistically
can be seen in the manner of illustrating the shoots with fruits and seeds “cut off” from the
flowering shoots (a similar way of presentation applies in modern works about plants). The
annotations provide information about the time of flowering and, more rarely, about when
fruits are borne or seed are mature:
Sanicula europaea: “has flowers in May and June” (18/37).
Paris quadrifolia: “flowers in April, the fruit matures in May” (18/68).
Agrimonia eupatoria: “begins to flower in June, the seeds mature in August” (18/23).
Centaurea solstitialis: “has flowers at equinox, since its name seems to be derived from this fact” (27/54).
For some species, a note is supplied about producing flowers twice, or about dying after
the period of flowering (Caltha palustris: 26/43), or after its seeds are produced (Fallopia
convolvulus: 23/12).
Flowering
The volumes of the Libri appear to be an “ever-flourishing” garden. In this hortus pictus we
can find plants flowering in almost every month of the year. Many of these plants are species
brought from southern regions and tended in gardens. The first flowers in this “painted garden”
102 LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
can be seen as early as February, and other species provide flowers without interruption until
the end of the year. Several examples can be noted.
February Lavandula multifida but only in its native place, in Spain (19/24v); Narcissus pseudonarcissus
(30/48).
March – there are not only bulb species blooming in March (Scilla cf bifolia: 22/8); Muscari neglectum: 30/28v)
but also others such as Vinca minor (25/44).
April – other bulb species such as Narcissus poeticus (30/40(39).
May – numerous species, for example, Asphodelus albus (22/21).
May and June – Alliaria officinalis (19/19); Sedum acre (24/17).
June–July – Teucrium scorodonia (19/2); Allium vineale (22/3).
Summer – in some cases the whole of the Summer is mentioned: Clinopodium vulgare (19/30). At the “end
of Summer” Clematis flammula (24/47) blooms, slightly later than in eastern-central Europe (June–August)
and definitively later than in southern Europe (May–July).
Autumn – Scilla cf autumnalis (30/28); Colchicum autumnale: “flowering slightly before the Autumn equinox”
(22/10).
Winter – the palaeotropical species Withania somnifera: “in our area it flowers during winter” (30/83(12)).
Flowering of alien species acclimatized in north-western Europe
In some cases, the author of the annotations was aware that the “local climate” can cause
differences in the phenological phases: Origanum heracleoticum (19/4) “in our climate it
flowers during the winter” (the steno-Mediterranean species normally flowers between June
and August); maize (Zea mays cultivar: 23/38v), imported from America, “when planted in
April, it ripens in August”.
Generally there is a good correlation between the phenological (mainly the flowering)
periods noted in Libri picturati and the flowering period known today. Obviously, there are
differences in the case of introduced species, cultivated in gardens and which have been
relocated from the south to the north (Table 2). There are many examples. Salvia officinalis
(19/65) is mentioned as flowering in June and July, while this steno-Mediterranean species
normally flowers naturally sometime between March and May. A similar case is Umbilicus
rupestris (22/45v), recorded as flowering in June and July, while this Mediterranean-Atlantic
plant flowers mostly between March and June.
Table 2. Flowering period of some plants represented in Libri picturati A. 1830 in comparison
to flowering period known today in Mediterranean region.
Taxon vol./folio Flowering period Flowering period known today in
Mediterranean region
Achillea ptarmica 24/43 May–September July–September
Anthericum ramosum 30/5 July May–July
Chrysanthemum segetum 25/62 June–Winter April–August
Dracunculus vulgaris 22/40 July April (–May)
Helichrysum cf italicum 29/45 “about midsummer” May–November
Hyssopus officinalis 19/32 June–July July–October
Origanum cf heracleoticum 19/4 Winter June–August
Origanum majorana 19/3 July–August June–September
Teucrium polium 19/29 July April–June
Vincetoxicum hirundinaria 24/25 June May–August
103LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
Other phenological phenomena
There are some scattered pieces of information pertaining to other changes occurring
seasonally in plants. For example, there is a note about the ferns having green leaves in
Winter – “stays green throughout the year” (Asplenium trichomanes, A. ruta-muraria: 18/2;
Ceterach officinarum: 18/8) – and lacking flowers – “The leaves appear in April, and die in
autumn. The flowers and fruits are entirely lacking” (Dryopteris filix-mas: 18/6). There is
also an interesting observation about the tufts of the pappus in representatives of the family
Compositae (Asteraceae): “it has flowers in mid-Summer, the florets mature quickly and
then fly away with tufts of pappus” (Erigeron sp.: 28/40). Another type of fruit, a berry,
was described several times: Sambucus nigra (20/60), Viburnum opulus (20/62), Hedera
helix (23/7).
Cultivated alien plants were subject to more thorough observation, and thus the annotations
furnished more details: Lactuca sativa Capitata Group and Crispa Group: “Both varieties
prefer well-spaced sowing in gardens with a lot of manure supplied. The plant normally
flowers in the Summer, in the second or third month after sowing” (28/23).
On the sheet with Juniperus sabina (27/7v) (Figure 6) is a note discussing some
Figure 6. Juniperus sabina (27/7v) occurs on mountains in south-eastern
Europe, and sometimes is planted in gardens: “With us sown in the gardens. The
fruit matures towards winter time, although Guilandinus claims that the plant
is sterile”. © Jagiellonian Library, Graphics Department, Cracow, Poland.
104 LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
phenological matters with Melchiorre Wieland (Guilandino) (1520–1589), Professor of Padua
University (Zemanek, 1998a: 104). Silybum marianum, a species described as returning to
the wild state in gardens, has some more detailed notes supplied: “It flowers in June and
July of the same year as it germinates, but dies shortly after producing seeds” (27/53).
Results of observations of various ecological phenomena and adaptations
Among the plants with special adaptations, particular attention should be given to the desert
xerophyte Anastatica hierochuntica (23/22v: rose-of-Jericho, resurrection-plant) (Figure
7), which dries up during drought but develops leaves immediately after watering. The
annotation shows how carefully this unusual species was observed: “It opens not only during
the Christmas Eve period, and not only on its own, as it was once believed by naïve local
people, but always when you want it, after prior spraying with water or wine”.
Other examples of accurate observation are supplied with the illustrations of several
parasitic flowering plants, including Orobanche rapum-genistae (23/94) (Figure 8), and
Cuscuta epilinum (27/89) which “emerges suddenly among forbs and shrubs, particularly
in flax fields and lives with their assistance, intertwined and attached to the roots of some
of these plants with its projections and hairs, it overwhelms the nearest plants, saps vital
stamina from them and sometimes chokes them”.
There is an interesting note to the rough hairs on the flowering spikes of wheats (Triticum
spp: 23/35): “sown in Alsace and elsewhere in wooded sites because of the roughness of
Figure 7. Anastatica hierochuntica (23 /22v), rose-of-Jericho or resurrection plant, dries up during a drought but
develops leaves immediately after watering. © Jagiellonian Library, Graphics Department, Cracow, Poland.
105LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
Figure 8. Orobanche rapum-genistae (23/94) is parasitic on various leguminous shrubs in Europe: “It emerges
on dry and poor soils, under a smaller shrub of Genista, which grows with considerable effort and has only
some flowers or none at all. Attached to its roots via a dense network of its own roots, it drains all sap out of it
and utilizes it for its own nutritional needs. It can be observed in the months of June and July”. © Jagiellonian
Library, Graphics Department, Cracow, Poland.
106 LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
spikes, which it grows to protect itself against grazing by wild boars”.
Observations about plants germinating in various habitats are sometimes added: “They
reach variable sizes, depending on the site where they germinate” (Lotus corniculatus,
Trifolium dubium: 23/117).
CONCLUSIONS
The ecological ideas contained in Libri picturati A. 1830 provide a synthesis of the
Renaissance body of knowledge about the relationships between plants and the environment.
It seems that a great proportion of the data, particularly that pertaining to north-western
Europe, resulted from many years of observation of plants both in the wild and in cultivation,
augmented by data from the literature covering south-western Europe, in particular the
Mediterranean region. The collection represents the abundance of aquatic and wetland species
as well as those of moist and anthropogenic habitats including canals. The relatively high
level of urban development and the disruption of the natural environment were reflected in
the high number of synanthropic species.
There is a striking absence of references to superstitions and magic, so often presented in
the Renaissance treatises on plants (even the beliefs in magic attached to rose-of-Jericho, quoted
above, are discarded as untrue by applying an experimental test). Most of the data provided in
the collection are corroborated by recent knowledge, although obviously on many occasions
we find the information from Libri picturati incomplete.
The vast array of ecological issues contained in the collection illustrates well the process
of the emergence of modern knowledge about the relationships between plants and the environ-
ment. It seems that such a high level of knowledge resulted not only from the theoretical research
interest of the creators of the collection, but also from the searches in the field aimed at finding
new plants for introduction into gardens. An additional source of information was provided
by horticultural practice which in the Netherlands of the late sixteenth century reached a very
high level. It was the marriage of theory and practice, this cradle of modern science, which
produced such a magnificent offspring in the form of the “painted garden” in Libri picturati.
ACKNOWLEDGEMENTS
We would like to thank Dr Jan de Koning for some unpublished data, Mr Piotr Hordyñski for acces to his
unpublished manuscripts Libri picturati A.18–30. Annotations to the pictures” and Libri picturati A. 18–30.
Technical description of the manuscripts”, and Professor Zdzisław Pietrzyk (Director of the Jagiellonian Library,
Cracow) for permission to reproduce some of the Libri picturati water-colours. This publication was supported by
State Committee for Scientific Research (Poland), research project No 3 P04G11424.
NOTES
1 The whole collection comprises of 16 volumes (A 16 – A 31). Since 16 and 17 contain only illustrations of
animals, and 31 was illustrated later in a completely different manner, we exclude these from our considerations.
The 13 volumes of botanical pictures are bound in white vellum over pasteboard, tooled in gold. All the bindings
are the same size: 51.5–52 × 36.5–37 cm.
Libri picturati A 1830 contain 1,142 sheets, some of them with pictures on both sides (1,429 water-colours).
Each painted page is separated from the next one by a blank sheet with the folio numbers written by pencil. In
this paper only these numbers are included.
107LIBRI PICTURATI AND THE BEGINNINGS OF ECOLOGICAL THOUGHT
2 All the annotations on the watercolours in Libri picturati A. 1830 have been re-examined by Piotr Hordyñski
who has made available to us his revised (but as yet unpublished) transcriptions which correct gaps and errors in
Ramón-Laca’s paper (2001). It is intended that these will be published under the auspices of the Libri Picturati Project
with facsimiles of the water-colours. Our translations of the annotations are based on Hordyñski’s transcripts.
3 Heinz-Dieter Krausch (Germany); Andrea Ubrizsy Savoia (Italy); Florike Egmont, Jan de Koning, Gerda
Uffelen (The Netherlands); Piotr Hordyñski, Tomasz Majewski, Alicja Zemanek, Bogdan Zemanek (Poland); Luis
Ramón-Laca (Spain).
4 Species determined by Martin Christenhusz, Gerda Uffelen and Bogdan Zemanek. Plant names of European
plants are according to Flora europaea (Tutin et alii, 1964–1980); of non-European plants after Bailey and Bailey
(1976).
5 In this paper a shortened system of numbering is used, for example, 22/34 = volume 22 folio 34.
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Received 1 December 2005. Accepted 1 December 2006.
... Jego celem było opracowanie wyjątkowej kolekcji renesansowych rycin Libri picturati przechowywanych od zakończenia II wojny światowej w Bibliotece Jagiellońskiej. W rezultacie powstało wiele artykułów analizujących ową kolekcję w różnych aspektach [241,244,258,257]. Ukoronowaniem tych prac było wydanie w Holandii obszernego opracowania autorstwa Jubilatki, prof. ...
... 27/folio 51, water-coloured) made in the Netherlands and stored in the Biblioteka Jagiello nska, Uniwersytet Jagiello nski, Krak ow, Poland. These paintings are from the second half of the 16th century and the beginnings of the 17th century and were annotated by the famous Flemish botanists like Charles de l' Ecluse (Carolus Clusius) (1526-1609) (Zemanek & Zemanek 2006;Zemanek, Ubrzizsy Savoia & Zemanek 2007). Recent examples include works by the Irish artist Patrick O'Hara, the print on postage stamps such as the 1967 Belgian one franc stamp (Robyns 1976), and the 1969 25 pfennig stamp in the former German Democratic Republic. ...
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Alliaria officinalis (19/19); Sedum acre
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May and June – Alliaria officinalis (19/19); Sedum acre (24/17).