Laurent Gautier

Laurent Gautier
Conservatoire et Jardin botaniques de la Ville de Genève | CJB · Herbarium

PhD

About

115
Publications
37,296
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1,659
Citations
Citations since 2017
23 Research Items
764 Citations
2017201820192020202120222023020406080100120140
2017201820192020202120222023020406080100120140
2017201820192020202120222023020406080100120140
2017201820192020202120222023020406080100120140

Publications

Publications (115)
Article
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Previous phylogenetic studies have demonstrated that the Manilkarinae are a monophyletic subtribe if Northia is excluded. The subtribe consists of four genera: Faucherea, Labourdonnaisia, Labramia and Manilkara. However, the same phylogenetic studies also raised taxonomic issues concerning unclear generic delimitations and unresolved relationships....
Article
During the course of a revision of the Malagasy species of the family Sapotaceae, two new species from the dry forest belonging to the highly-diverse endemic genus Capurodendron Aubrév. were discovered. The first one, C. mikearum L. Gaut. & Boluda, earlier hypothesised to be a hybrid, emerged as a valid species without any hybrid signal, based on a...
Article
Full-text available
The Malagasy genus Capurodendron currently accommodates 26 described species and is the largest genus of the family Sapotaceae in Madagascar. These species are frequently logged because of their valued hardwood, which potentially puts them at risk of extinction. Species‐level identifications are often problematic, and this hinders both an accurate...
Article
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Deidamia Noronha ex Thouars (Passifloraceae) is a small genus known from Madagascar and the Comoro Islands. The previous treatment by Henri Perrier de la Bâthie for the Flore de Madagascar et des Comores recognized five species: Deidamia alata Noronha ex Thouars, Deidamia bicolor H. Perrier, Deidamia bipinnata Tul., Deidamia commersoniana DC. and D...
Article
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Capurodendron is the largest endemic genus of plants from Madagascar, with around 76% of its species threatened by deforestation and illegal logging. However, some species are not well circumscribed and many of them remain undescribed, impeding a confident evaluation of their conservation status. Here we focus on taxa delimitation and conservation...
Article
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Some tropical plant families, such as the Sapotaceae, have a complex taxonomy, which can be resolved using Next Generation Sequencing (NGS). For most groups however, methodological protocols are still missing. Here we identified 531 monocopy genes and 227 Short Tandem Repeats (STR) markers and tested them on Sapotaceae using target capture and NGS....
Chapter
Full-text available
Written by and for persons curating, preparing or managing natural history collections, this handbook intends to make existing knowledge easily available and transferable. It gathers specific actions relevant for the conservation of natural history objects, the coordinated digitisation of associated data and the development of a modern digital infr...
Article
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Randriarisoa, A., Y. Naciri & L. Gautier (2020). Labramia ambondrombeensis (Sapotaceae), a Critically Endangered new species from Madagascar. Candollea 75: 83–87. In English, English and French abstracts. Timber of the family Sapotaceae are appreciated for their physical properties internationally as well as locally, which often put a serious press...
Article
Englerophytum and Synsepalum are two closely related genera of trees and shrubs from the African tropics. Previous molecular studies have shown that these genera collectively form a clade within the subfamily Chrysophylloideae (Sapotaceae). However, little is known about the inter-relationships of the taxa within the Englerophytum – Synsepalum clad...
Article
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Gautier, L. & Y. Naciri (2018). Three Critically Endangered new species of Capurodendron (Sapotaceae) from Madagascar. Candollea 73: 121–129. In English, English and French abstracts. DOI: http://dx.doi.org/10.15553/c2018v731a13 Three new species in the Malagasy endemic genus Capurodendron Aubrév. (Sapotaceae) are described and illustrated. Their p...
Article
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The intensive geographical exploration of the world, starting in the mid eighteenth century, resulted in the discovery of numerous plant species new to science of which many were subsequently introduced into cultivation in Europe. Etienne-Pierre Ventenat (1757-1808) contributed widely to this process. After the end of his curatorial and teaching co...
Article
Les Conservatoire et Jardin botaniques de la Ville de Genève (CJB) possèdent dans leurs locaux des collections scientifiques botaniques et mycologiques parmi les plus riches et les plus importantes au monde. Les herbiers des CJB abritent en effet plus de 6 millions de spécimens d’herbier, d’une valeur inestimable appelés à jouer un rôle important d...
Book
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This booklet accompanies the exhibit The Many Lives of Herbaria opened to the public of Cabinet de Curiosités at the Conservatory and Botanical Garden of Geneva (March 2017-December 2018). It gives information about the history of the herbariumn of Geneva and its main collections as well as insights into its management as a dynamic research facilit...
Article
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Dans le Nord-ouest de Madagascar, la péninsule d’Ampasindava abrite une partie importante des dernières forêts du Domaine du Sambirano. Ces forêts ont connu des transformations en structure et en composition à cause de la pratique de l’agriculture itinérante. Pour pouvoir cartographier le paysage et décrire les différentes classes de végétation act...
Article
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The authors revise the material associated with Scrophularia farinosa Boiss. (Scrophulariaceae) and its synonyms according to "Flora Iranica". Two distinct taxa emerge, which differ in terms of morphology, anatomy, distribution and ecology and both deserve recognition at species level. Scrophularia longiflora Benth. is an earlier synonym of Scrophu...
Article
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Five new species of Englerophytum K. Krause (Sapotaceae) are described: Englerophytum paludosum L. Gaut., Burgt & O. Lachenaud, Englerophytum gigantifolium O. Lachenaud & L. Gaut., Englerophytum libenii O. Lachenaud & L. Gaut., Englerophytum sylverianum Kenfack & L. Gaut., and Englerophytum ferrugineum L. Gaut. & O. Lachenaud. All five species are...
Article
The genus Donella Pierre ex Baill. is here reinstated and Austrogambeya Aubrév. is, for the first time, placed in synonymy based on the findings of recent combined molecular and morphological studies. Seventeen species are recognised, two of which, Donella ranirisonii L.Gaut. & Mackinder and D. humbertii Capuron ex Mackinder & L.Gaut., from Madagas...
Article
Biscutella boeticaBoiss. & Reut. was described from material collected in southern Spain (“Hab.in sterilibus Boeticae circâ Malaga, Cartagena, etc. etc.”) by P.E. Boissier. The protologue includes a detailed description with diagnostic differences with regard to other annual congeners, such as B. microcarpa DC. (currently synonymised to B. lyrata L...
Article
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Luino I., M.W. Callmander, O. Poncy, S. Da-Giau & L. Gautier (2016). A new Pararistolochia Hutch. & Dalziel (Aristolochiaceae) from the Beanka tsingy (western Madagascar). Candollea 71 : 135–141. In English, English and French abstracts. DOI : http ://dx.doi.org/10.15553/c2016v711a16 Pararistolochia Hutc. & Dalziel (Aristolochiaceae) is a genus tha...
Article
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In the sixth paragraph of the Discussion section entitled “Regional Diversification in Manilkara,” in the sentence beginning “In Sapotaceae four lineages of Isonandreae have migrated… ” the citation of Swenson et al., 2008 should instead be: Swenson, U., Nylinder, S., and Munzinger, J. (2014). Sapotaceae biogeography supports New Caledonia being an...
Article
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Afin de contribuer à la conservation des restes de forêts dans la presqu’île d’Ampasindava, Domaine du Sambirano, une poursuite des recherches, initiée en 2008 par les Conservatoire et Jardin botaniques de la Ville de Genève, en collaboration avec le Département de Biologie et Ecologie Végétales de l’Université d’Antananarivo (Madagascar), a été en...
Article
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Species diversity is unequally distributed across the globe, with the greatest concentration occurring in the tropics. Even within the tropics, there are significant differences in the numbers of taxa found in each continental region. Manilkara is a pantropical genus of trees in the Sapotaceae comprising c. 78 species. Its distribution allows for b...
Article
Full-text available
Buerki, S., D. R. Doherty, L. Gautier & M. W. Callmander (2014). Rediscovery of the genus Tsingya Capuron (Sapindaceae) and its phylogenetic position. Candollea 69: 195–200. In English, English and French abstracts. A recent intensive inventory in the Beanka region in western Madagascar has led to the rediscovery of a poorly known endemic and monot...
Article
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Thulin, M., L. Nusbaumer & L. Gautier (2014). Bauhinia darainensis Thulin & Nusb. (Fabaceae), a new species from northern Madagascar. Candollea 69: 135–139. In English, English and French abstracts. Bauhinia darainensis Thulin & Nusb. (Fabaceae), a new species from the Loky-Manambato region of north-eastern Madagascar, is described and illustrated....
Article
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Résumé Afin d'évaluer l'évolution de la surface forestière d'une mosaïque forêt-savane, ce travail analyse la comparaison de deux couvertures photographiques aériennes à 25 ans d'intervalle sur la réserve de Lamto (sud du V-Baoulé en Côte d'Ivoire centrale), à l'échelle 1/5000ème. Il met en évidence une progression de la surface forestière de l'ord...
Article
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CALLMANDER, M. W., I. LUINO, S. DA-GIAU, C. RAKOTOVAO & L. GAUTIER (2014). A synoptic revision of the Malagasy endemic genus Socratina Balle (Loranthaceae). Candollea 69: 65-73. In English, English and French abstracts. The hemiparasitic endemic genus Socratina Balle (Loran-thaceae) is revised for Madagascar. Three species are recog-nized, includin...
Article
Full-text available
Species diversity is unequally distributed across the globe, with the greatest concentration occurring in the tropics. Even within the tropics, there are significant differences in the numbers of taxa found in each continental region. Manilkara is a pantropical genus of trees in the Sapotaceae comprising c. 78 species. Its distribution allows for b...
Article
Full-text available
Phylogenetic relationships of the two Malagasy Sapotaceae endemic genera Capurodendron and Tsebona have been unclear until now. Recent collections from Madagascar as well as a better representation of the tribe Isonandreae, altogether 95 terminals, were used to estimate a phylogeny of subfamily Sapotoideae. We analysed sequences of nrDNA (ITS) and...
Article
Gautier, L. & T. Deroin (2013). Uvaria lombardii L. Gaut. & Deroin (Annonaceae), a new species endemic to Madagascar with spectacular inflorescences. Candollea 68: 237–244. In French, French and English abstracts. Uvaria lombardii L. Gaut. & Deroin, a new species of Annonaceae, growing in the tropophilous forests of Mahajanga and Antsiranana provin...
Article
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Callmander, M. W., P. B. Phillipson, T. Deroin & L. Gautier (ed.) (2013). Notes on the flora of Madagascar, 30–34. Candollea 68: 301–320. In English and French, English and French abstracts. Ongoing research on Madagascar's flora is revealing numerous taxonomic novelties and nomenclatural inconsistencies, and providing new data on species distribut...
Article
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Cribb, P., L. Gautier & L. Nusbaumer (2013). How many species are there in the holomycotrophic genus Didymoplexis Griff. (Orchidaceae) in Madagascar? Candollea 68: 41–49. In English, English and French abstract. The holomycotrophic genus Didymoplexis Griff. (Orchidaceae) is revisited for Madagascar. Two species, Didymoplexis avaratraensis P. J. Cri...
Article
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Callmander, M. W., P. B. Phillipson & L. Gautier (ed.) (2012). Notes on the flora of Madagascar, 26. Candollea 67: 369–372. In English, English and French abstracts. Ongoing research on Madagascar's flora is revealing numerous taxonomic novelties and nomenclatural inconsistencies, and providing new data on species distribution. This is the fifth in...
Article
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Wahlert, G. A., L. Nusbaumer & L. Gautier (2013). Rinorea ranirisonii Nusb. & Wahlert (Violaceae): a new species from the Daraina region of northern Madagascar. Candollea 68: 87–92. In English, English and French abstracts. Rinorea ranirisonii Nusb. & Wahlert (Violaceae), a new species from the Daraina region of northern Madagascar, is described an...
Article
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In tropical regions, most primary ecosystems have been replaced by mosaic landscapes in which species must cope with a large shift in the distribution of their habitat and associated food resources. Primates are particularly vulnerable to habitat modifications. Most species persist in small fragments surrounded by complex human-mediated matrices wh...
Data
Canonical scores of the different MOTUs for the two first axes of the co-inertia analysis. (DOCX)
Data
List of the lowest taxonomic levels assigned to the 130 MOTUs found in the P. tattersalli faecal pellets. MOTUs were ranked by their frequencies of occurrences (Fo). Fs are the frequency of sequences. New taxa are indicated in bold type. (DOCX)
Article
Uvaria lombardii L. Gaut. & Deroin, a new species of Annonaceae, growing in the tropophilous forests of Mahajanga and Antsiranana provinces, is described, illustrated and its known distribution mapped. The morphology of the outstanding caulinar cymous inflorescences is discussed, as well as its systematic affinities with Uvaria acuminata var. catoc...
Article
Background and aims - The vegetation of the Loky-Manambato region is influenced by strong gradients in precipitation, temperature and altitude. The aim of this contribution is to characterize the floristic features of the area by studying forest vegetation associations and to analyse their relationships with the phytogeographical Domains of Madagas...
Article
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Background and aims - Based on presence/absence information for all angiosperms in Tropical Africa, Southern Africa and Madagascar, we review the similarities and differences between these floras. We compare specific and generic richness for the three areas, and examine their degree of overlap. Madagascar and Sub-Saharan Africa are compared in term...
Article
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La plupart des forêts denses sèches décidues de l’Ouest-Centre de Madagascar sont mal connues sur le plan biologique, à l’exception de quelques sites comme Kirindy CNFEREF au nord de Morondava et, dans une moindre mesure, le massif du Bemaraha au nord du fleuve Manambolo. Le Bemaraha repose sur un socle de calcaires exposés ruiniformes appelé tsing...
Article
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Une étude de la couverture forestière du massif forestier de Beanka a été réalisée à partir d’images satellitaires LANDSAT. Elle se base sur l’analyse des compositions colorées et l’étude de la quantité de végétation par l’analyse de l’indice de végétation (NDVI). Celui-ci a été calculé sur une image du mois d’octobre, partant du principe qu’en fin...
Article
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La forêt de Beanka se trouve sur le prolongement nord du Bemaraha dans l’Ouest de Madagascar et abrite également une végétation sur calcaires érodés. Très mal connue, elle s’en distingue physionomiquement par une couverture forestière plus fermée. De 2011 à 2012, des travaux botaniques approfondis ont été menés. Le présent article est axé à la cara...
Article
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In a country such as Madagascar, with its extraordinary variation in climate and geology, associated vegetational variation, distinct biomes, and notable biotic heterogeneity, floristic and faunistic inventories over the past few decades have disclosed many hundreds of new species to science. Contrary to what might be anticipated given all of the i...
Article
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Un inventaire des plantes vasculaires de la région de Beanka est proposé. Il est basé sur 2326 récoltes d’échantillons d’herbier. Malgré la nature encore partielle des identifications, nous pouvons déjà tirer les conclusions suivantes : 1) La richesse floristique se monte à 965 espèces réparties en 485 genres et 134 familles. Cette valeur élevée pe...
Article
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Cribb, P., L. Nusbaumer & L. Gautier (2012). Angraecum darainense P. J. Cribb & Nusb. and Aeranthes unciformis P. J. Cribb & Nusb. (Orchidaceae), two new species from northern Madagascar. Candollea 67: 269–275. In English. English and French abstracts. Two new orchid species, Angraecum darainense P. J. Cribb & Nusb. and Aeranthes unciformis P. J. C...
Article
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Wahlert, G. A., P. B. Phillipson, L. Nusbaumer & L. Gautier (2012). Cyphostemma darainense Wahlert & Phillipson (Vitaceae), a new species from northeastern Madagascar. Candollea 67: 277–283. In English, English and French abstracts. Cyphostemma darainense Wahlert & Phillipson (Vitaceae), a new species from northeastern Madagascar, is described and...
Article
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Note 24. Peltophorum dasyrhachis (Miq.) Kurz: a new record of a Southeast Asian species of Fabaceae (Caesalpinioideae) naturalized in northwestern Madagascar, by Zachary S. Rogers and Mats Thulin. Two recent Fabaceae collections from northwestern Madagascar document the presence of Peltophorum dasyrhachis (Miq.) Kurz in the country. This discovery...
Article
Full-text available
Background and aims – Based on presence/absence information for all angiosperms in Tropical Africa, Southern Africa and Madagascar, we review the similarities and differences between these floras. We compare specific and generic richness for the three areas, and examine their degree of overlap. Madagascar and Sub-Saharan Africa are compared in term...
Article
Jongkind, C. C. H. & L. Gautier (2011). Combretum nusbaumeri Jongkind & L. Gaut. (Combretaceae), a new species from Madagascar. Candollea 66: 311–315. In English, English and French abstracts. The new species Combretum nusbaumeri Jongkind & L. Gaut. (Combretaceae) that is endemic to north-eastern Madagascar is described and illustrated. It belongs...
Article
Ammann, M., L. Gautier & J. Klackenberg (2011). Calyptranthera viridiflava Ammann, L. Gaut. & Klack. (Apocynaceae s.l., Secamonoideae), a new species from Madagascar. Candollea 66: 281–284. In English, English and French abstracts. A new species of Calyptranthera (Apocynaceae s.l., Secamonoideae), Calyptranthera viridiflava Ammann, L. Gaut. & Klack...
Article
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Bakayoko, A., P. Martin, C. Chatelain, D. Traore & L. Gautier (2011). Diversity, family dominance, life forms and ecological strategies of forest fragments compared to continuous forest in southwestern Côte d'Ivoire. Candollea 66: 255–262. In English, English and French abstracts. Extensive agriculture and timber exploitation are the principal caus...
Article
This floristic study of the fragments forest is located in the Taï area in the Southwestern of Côte d'Ivoire. In this region we still finds many forest fragments (from 0.5 ha and more than 34 ha). The objectif of this study is to make a floristic description of of the Taï area fragments forests which have never been done and also to see whether the...
Article
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Background and aims - The Catalogue of the Vascular Plants of Madagascar project aims to evaluate and enumerate the native and naturalized vascular plant flora of Madagascar. In light of the past two decades of intensive collecting and taxonomic work, all relevant published literature and available specimens are being reassessed in order to evaluat...