Published by Magnolia Press

Online ISSN: 1179-3163


Print ISSN: 1179-3155


FIGURE 1. Maximum likelihood tree of nuclear ITS sequences of Orobanche, using the genus Diphelypaea as outgroup. Some clades with more sequences per species and/or several closely related species are collapsed to aid legibility. Orobanche krylowii is indicated in bold larger font. Numbers above branches are maximum likelihood, those below maximum parsimony bootstrap support values above 60%.  
FIGURE 3. Photos of Orobanche krylowii from Albania with its host Thalictrum minus.  
FIGURE 4. Distribution of Orobanche krylowii based on the examined herbarium material and photos (big dots) as well as literature data (small dots). The locality in Albania is marked with a triangle.  
Phylogenetic position and taxonomy of the enigmatic Orobanche krylowii (Orobanchaceae), a predominatly Asian species newly found in Albania (SE Europe)
  • Article
  • Full-text available

October 2013


628 Reads






We report on the occurrence of Orobanche krylowii in the Alpet Shqiptare (Prokletije, Albanian Alps) mountain range in northern Albania (Balkan Peninsula). The species was previously known only from eastern-most Europe (Volga-Kama River in Russia), more than 2500 km away, and from adjacent Siberia and Central Asia. We used morphological evidence as well as nuclear ribosomal ITS sequences to show that the Albanian population indeed belongs to O. krylowii and that its closest relative is the European O. lycoctoni, but not O. elatior as assumed in the past. Both Orobanche krylowii and O. lycoctoni parasitize Ranunculaceae (Thalictrum spp. and Aconitum lycoctonum, respectively). We provide an identification key and a taxonomic treatment for O. krylowii, and suggest the IUCN category CE (critically endangered) for the highly disjunct Albanian population.

FIGURE 1: Geographical location of Highlands Hammock State Park, Highlands County, Florida, USA. Asterisk: drill site of sediment core HHA3.
FIGURES 2-16: Aulacoseira coroniformis. Figs 2-10: LM images, all in girdle view apart from Figs 5, 6 & 9 which are in valve face view. Figs 2-6: Specimens from the holotype slide. Figs 2 & 3: Two spine-linked valves belonging to two frustules shown in two different foci. Arrows in Fig. 3 indicate the sulci of both valves. Figs 5 & 6: Two different foci of a valve in face view. Fig. 5 emphasizes the marginal ring of spines, Fig. 6 the areolae on the valve face periphery. Figs 4 & 7: Two complete frustules in girdle view. Fig. 8: Chain of four valves in girdle view, the middle two forming one frustule, with clearly visible, closely spaced pervalvar striae. Figs 11-16: SEM images documenting variation of discus areolation and spine morphology. The arrows in Figs 12, 14 & 15 indicate the border between discus areolae and peripheral striae belonging to the mantle. Scale bars: Figs 2-10: 10 µm; Figs 11-15: 5 µm; Fig. 16: 2 µm.
FIGURES 17-28: Aulacoseira coroniformis. SEM images, all in girdle view. Figs 17-25: variability of habitus, size and height-to-diameter ratio in selected valves. The black arrow in Fig. 18 points to the sulcus. White arrows in Figs 18, 22 & 25 point to possible external rimoportula openings. Figs 26-28: close-ups of Figs 23-25, respectively, showing the spine linkages between two valves of two different frustules. Scale bars: Figs 17, 19, 21, 23, 24, 25: 5 µm; Figs 18, 20, 22, 26, 27, 28: 2 µm.
FIGURES 29-37: Aulacoseira coroniformis. SEM images. Figs 29-31: size and position of the ringleiste (arrows in Figs 29 & 30). Figs 32-34: position of the rimoportula near the inner ringleiste (arrows). Figs 35-37: close-ups of Figs 32-34, respectively, showing the shape, size and positioning of the rimoportula (arrows). Scale bars: Figs 29-34: 5 µm; Figs 35-37: 1 µm.
Aulacoseira coroniformis sp. nov., a new diatom (Bacillariophyta) species from Highlands Hammock State Park, Florida

December 2010


235 Reads

Aulacoseira coroniformis sp. nov. is described from a short peat core recovered in Highlands Hammock State Park, Florida, U.S.A. The morphology of the new diatom species is documented by light and scanning electron micrographs and discussed in detail, including a comparison with related species in the genus Aulacoseira.

Carnevali, G., Pérez-García, E.A., Leopardi-Verde, C.L., Tapia-Muñoz, J.L., Cetzal-IX, W.R., Ramírez-Morillo, I.M. & Romero-González, G.A. (2018) The Encyclia ambigua complex (Laeliinae, Orchidaceae), a synopsis and notes on Encyclia virens and Epidendrum alatum. Phytotaxa 372 (1): 001–021.

October 2018


524 Reads

Giffenia koreana sp. nov. (Bacillariophyta): A newly identified epipelic diatom in the tidal flat sediments of Suncheonman Bay, extant for over 1,400 Years
  • New
  • Article

December 2023


1 Read

An unknown Giffenia taxon was sampled from the tidal flat sediment of Suncheonman Bay in the Republic of Korea on June 11, 2018. To identify the species, a detailed analysis using light and electron microscopy and a literature review were conducted. The important morphological characteristics—thin lip-shaped sternum, elongated alveoli, and eccentric raphe slit—were found in the species. These features are not present in previously described Giffenia taxa (Giffenia cocconeiformis). The new diatom species is characterized by (1) a slightly undulated valve face, (2) a lip-shaped sternum with a slightly rough surface, (3) numerous elongated alveoli on the valve face, and (4) an eccentric raphe slit. We propose Giffenia koreana sp. nov. as a new epipelic diatom taxon.

Three novel species of Bacillariophyta (Diatoms) in the genera Surirella and Thalassiosira from Pleistocene Paleolake Lorenyang (~2 - 1.6 Ma) Turkana Basin, Kenya

October 2018


76 Reads

Three novel species of Bacillariophyta (diatom) are described from the sediments of Paleolake Lorenyang, a large lake that existed in the Turkana Basin, Kenya during the Gelasian age of the Pleistocene Epoch. Sediment cores extracted as part of the Hominin Sites and Paleolakes Drilling Project (HSPDP) were sampled to provide a diatom-based paleoecological record of Paleolake Lorenyang. Preliminary results of the paleoecological analysis unearthed three novel species of diatoms belonging to Surirella and Thalassiosira in the Natoo Member of the Nachukui Formation. Comparisons of Surirella from Paleolake Lorenyang are made to previous reports of Surirella from modern lakes in East Africa and comparisons of Thalassiosira species from the paleolake are made to modern and fossil species reported from East Africa. This is a first report of diatoms in the Natoo Member, which has previously been described as a floodplain deposit, and thus provides evidence of the last occurrence of Paleolake Lorenyang within the Turkana Basin. Herein we describe a new species of Surirella and two Thalassiosira with remarks on morphology and evolution of East African Surirella and Thalassiosira.

Critical review of “Monograph of Ceratozamia (Zamiaceae, Cycadales): an endangered genus” published in PhytoKeys 208: 1–102 (2022)

September 2023


26 Reads

The recent publication of a monograph on Ceratozamia promised greater taxonomic understanding in the genus. Instead, the plethora of inaccuracies and inconsistencies therein undermined taxonomic cohesiveness. This review critically evaluates the Ceratozamia monograph of Martínez-Domínguez et al. (2022), systematically correcting the inaccuracies and clarifying the inconsistencies therein. Notably, the proposed lectotypification of C. mirandae is invalidated, the proposed specific status of C. osbornei is questioned, the proposed synonymy of C. dominguezii under C. subroseophylla is rejected, the proposed recircumscriptions of C. sancheziae and C. zoquorum are refuted, and a lectotype and isolectotype for C. whitelockiana are designated. Additionally, evidence is provided for phenotypic and ontogenetic plasticity of cone color, ovulate cone apex shape, megasporophyll horn shape and orientation, megasporophyll distal face prominence, and microsporophyll distal face topology. Finally, within Ceratozamia, ‘mucronate’ is standardized over ‘apiculate’, ‘conspicuous’ is standardized for leaflet vein light transmission, and ‘prominent’ is standardized for vein protrusion from the leaflet surface; in addition, ‘vernation’ is standardized over ‘ptyxis’ across the Cycadales.

Erratum: Di Pietro, R., Kuzmanović, N., Lakušić, D., Viciani, D., Fortini, P. & Iamonico, D. (2021) Nomenclatural and taxonomic notes on some names of Sesleria sect. Argenteae (Poaceae) from Italy and the Balkans. Phytotaxa 494 (1): 89–102.

May 2021


40 Reads

In our recent paper, we noticed a mistake concerning figure 2 (Di Pietro et al. 2021: 93). According to the caption, figure 2 should represent the sheet FI051890 (a lectotype of Sesleria nitida var. tenoreana f. visianii). In fact, in the place of the sheet FI051890, a figure containing two herbarium specimens deposited in PAD (PAD-HD00955 and PAD-HD00956) was erroneously published. These two PAD specimens were discussed in the paper (Di Pietro et al. 2021: 94) where it was highlighted that these could not be considered with certainty as original material for Sesleria nitida var. tenoreana f. visianii Pampanini (1917: 4).We here, correct the mistake and publish the image of lectotype of Sesleria nitida var. tenoreana f. visianii (FI051890, Fig. 1).

Reestablishing Dicranopteris spissa (Gleicheniaceae, Polypodiopsida) from synonymy, an endemic species from Brazil. Phytotaxa 533 (1): 98–104. (Erratum)

February 2023


81 Reads

This publication is a Corrigendum to Lima & Salino (2022). In the original article, we did not fully refer to the original publication of the basionym of the new proposed combination, which we rectify here. The authors apologize for the mistake and state that this does not change the scientific conclusions of the article in any way.

Lectotypification of 11 names of Eurya (Pentaphylacaceae) for the Flora of China

July 2016


225 Reads

Eurya Thunberg (1783: 67) is a genus of Pentaphylacaceae and it contains about 130 species distributed widely in tropical and subtropical Asia and the Pacific Islands; 83 species (63 endemic) are known from China (Ming & Bartholomew 2007). The genus was assigned to Theaceae in FRPS (Ling, 1966), while molecular studies (e.g., Tsou & Vijayan, 2016) placed it in Pentaphylacaceae and resolved it as a monophyletic group which is recognized here. Notably, paraphyletic groups are sometimes advocated by some authors (e.g., Brummitt, 2014; Ehrendorfer & Barfuss, 2014; George, 2014; Horandl, 2014; Stuessy & Horandl, 2014; Stuessy et al. , 2014). Species of Eurya often have unisexual flowers. In an effort to update the online version of Flora of China (, we found that two gatherings were designated as types for each of 11 names of Eurya published in a same article by Chang (1954). Here we lectotypify these 11 names by choosing one of the two gatherings designated as the lectotype of each name so that the application of these names can be stabilized.

FIGURE 1. Stigmatodactylus dalagangpalawanicum (from Robinson AR002 and living material studied in situ). A. Flowering plant; B. Flower from front; C. Flower from side; D. Labellum from front; E. Oblique view of column; F. Dorsal sepal; G. Petal; H. Leaf; I. Tubers, previous and current season. Drawing by A. S. Robinson.  
FIGURE 3. Stigmatodactylus aquamarinus (from Robinson AR003 and living material studied in situ). A. Flowering plant; B. Flower from front; C. Flower from side; D. Labellum from front; E. Fruit; F. Oblique view of column; G. Petal; H. Dorsal sepal; I. Leaf. Drawing by A. S. Robinson.  
FIGURE 4. Stigmatodactylus aquamarinus growing in situ in the Mount Victoria massif.  
FIGURE 6. Cryptostylis carinata growing in moss on a rotting tree trunk.  
Robinson, A.S., Gironella, E.P. & Cervancia, J.M. (2016) New orchid species of Sigmatodactylus (Orchidoideae; Diurideae) and a new record of Cryptostylis carinata from central Palawan, Philippines. Phytotaxa 252 (2): 99–113.

April 2016


541 Reads

Two new species of Stigmatodactylus from Palawan Island in the Philippines are described and illustrated. The taxa, which represent the first records for the genus Stigmatodactylus in the Philippines, are restricted to the ultramafic peaks of central Palawan. Cryptostylis carinata, originally described from New Guinea, is also documented, representing a first record for this species in Palawan. Buod (Pilipino) Inilarawan at iginuhit sa artikulong ito ang dalawang bagong species ng Stigmatodactylus mula sa isla ng Palawan sa Pili-pinas. Ito ang pinakaunang tala ng genus Stigmatodactylus sa Pilipinas at matatagpuan lamang sa ultramafic na bundok sa gitnang Palawan. Ang ultramafic na bundok ay may mataas na mga sangkap na Magnesium at Iron. Inihayag rin sa sulating ito ang unang tala sa Palawan ng 1 species na Cryptostylis carinata, na unang naitalâ sa bansang New Guinea.

FIGURE 2. Erigeron morelensis. A. Habitat with Erigeron plants indicated by white circles; B. Basal leaves with reddish to purple petioles, white arrows show immature capitula; C. Habit highlighting basal leaves and a monocephalous stem, white arrows show aboveground stolons; D. Capitula with ligules; E. Phyllaries green and purple with pink ray florets; F. Receptacle with disc and ray florets; G. Individual ray and disc florets; H. Cypsela with orange ribs (black arrow) and bristles; I. Echinate pollen grains. Photos by Rosa Cerros-Tlatilpa and Mónica I. Miguel-Vázquez.
Erigeron morelensis (Asteraceae): a rediscovery after more than 120 years of a microendemic and threatened species in central Mexico

March 2023


78 Reads

The rediscovery of Erigeron morelensis, not collected since 1898, is reported. Between 2021 and 2022, E. morelensis was recorded at two sites in the northwestern canyons of Cuernavaca, Morelos, Mexico, which are subjected to degradation pressure. The morphological description is updated and complemented, and a key for E. sect. Erigeridium is included. Data about the known distribution, ecology and habitat of the species are provided. Based on the IUCN criteria, it is recommended that the species be listed as Critically Endangered (CR).

FIGURE 1. Phylogenetic relationships among 40 species from 17 genera of Desmodieae based on the combined data set of chloroplast matK and rbcL. The tree was constructed using the Maximum likelihood method. Numbers near the nodes are posterior probabilities and bootstrap percentages (PP, BP) from Bayesian analysis and Maximum likelihood, respectively. A dash (--) indicates the bootstrap <50% for ML tree. The new species in this study is shown in bold type.
FIGURE 3. Pseudarthria panii. A. abaxial side of leaflet (revolved margin), B. fruiting branch, C. petiole clothed with small hooked hairs, D. flower, E. stamens, F. pistil, G. calyx, H. standard, I. wing, K. keel, L. habit. Illustrations by Bo Pan, from the holotype-CHINA. Yunnan: Xishuangbanna, Menghai County, Xiding, 13 December 2014, Barcode 1262264, Bo Pan XD001 (KUN).
FIGURE 4. Geographical distribution of Pseudarthria panii. Prepared by Dr. Rui-Wu Zhou.
Pseudarthria panii (Fabaceae: Desmodieae), a new species from Asia, 120 years after its first collection

September 2018


310 Reads

A new trifoliolate shrub, Pseudarthria panii (Fabaceae: Desmodieae), is described and illustrated. It resembles Pseudarthria viscida, but differs by its taller height, upright habit, late flowering, leaflets with an acuminate apex, longer light purple flowers, longer glabrous fruits, and more seeds. It occurs in the montane forest of China (Yunnan), Laos, Myanmar, Thailand, and Vietnam. Molecular evidence from the concatenated chloroplast fragments of rbcL and matK confirms its placement in Pseudarthria, which is a newly recorded genus from China, Laos, Thailand and Vietnam. The first collection of the new species can be dated back to ca. 120 years ago, i.e. Augustine Henry’s collection in Yunnan during 1896–1899. A key to Pseudarthria is also presented.

Top-cited authors