A5041878947- Plant Diversity and Evolution
- Plant and Fungal Species Descriptions
- Plant and animal studies
- Pacific and Southeast Asian Studies
- African Botany and Ecology Studies
- GABA and Rice Research
- Fern and Epiphyte Biology
- Natural product bioactivities and synthesis
- Traditional and Medicinal Uses of Annonaceae
- Mediterranean and Iberian flora and fauna
- Phytochemistry and Biological Activities
- Plant Parasitism and Resistance
- Plant Ecology and Taxonomy Studies
- Plant Taxonomy and Phylogenetics
- Phytochemical compounds biological activities
- Genomics and Phylogenetic Studies
- Sesquiterpenes and Asteraceae Studies
- Plant biochemistry and biosynthesis
- Ecology and Vegetation Dynamics Studies
- Genetic diversity and population structure
- Botany and Plant Ecology Studies
- Botany, Ecology, and Taxonomy Studies
- Plant Growth and Agriculture Techniques
- Ethnobotanical and Medicinal Plants Studies
- X-ray Diffraction in Crystallography
Conservatory and Botanical Garden of the City of Geneva
2016-2025
Eastern Michigan University
2020-2022
Washington University in St. Louis
2022
Humboldt-Universität zu Berlin
2022
Tel Aviv University
2022
Natural History Museum Aarhus
2021
University of Copenhagen
2021
The Royal Danish Academy of Sciences and Letters
2021
Freie Universität Berlin
2021
Prussian Cultural Heritage Foundation
2021
Angiosperms are the cornerstone of most terrestrial ecosystems and human livelihoods
Madagascar is renowned for its unparalleled species richness and levels of endemism, which have led, in combination with extinction caused by an unprecedented rate anthropogenic deforestation, to designation as one the most important biodiversity hotspots. It home 10 650 (84% endemic) angiosperms 1621 genera (19% endemic). During last two centuries, botanists focused their efforts on provision a taxonomic framework flora island, but much remains be investigated regarding evolutionary...
Background and aims - The Catalogue of the Vascular Plants Madagascar project to evaluate enumerate native naturalized vascular plant flora Madagascar. In light past two decades intensive collecting taxonomic work, all relevant published literature available specimens are being reassessed in order status distribution taxa plants. Here we provide current figures for total numbers plants levels endemism at order, family, genus species levels, comparing them previous historical counts analyzing...
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/c2016v711a16Pararistolochia Hutc. is a genus that comprised about 35 species known until present continental Africa Australasia. Two recent inventories carried in limestone massif of western Madagascar have led to detection we...
A synoptic revision of the Squamosa group Diospyros L. (Ebenaceae) in Madagascar and Comoro Islands is presented which nine species are recognized, including six new that described illustrated (Diospyros antakaranae Capuron ex G.E. Schatz & Lowry, sp. nov., betamponensis callmanderi darainensis phillipsonii sennenii nov.). key to provided, along with an IUCN risk extinction assessment for each species. Five assessed as Endangered (D. D. tetraceros H. Perrier), one Vulnerable nov.), Near...
Klein, D.-P., R. Shtein, L. Nusbaumer & M.W. Callmander (2021). Kalanchoe darainensis (Crassulaceae), a new species from northeastern Madagascar. Candollea 76: 117–123. In English, English and French abstracts.A of small, rosulate upright-flowered Adans. (Crassulaceae) Madagascar is described illustrated: D.-P. Klein Callm. Morphologically, most similar to blossfeldiana Poelln. globulifera H. Perrier which are known the northwestern Tsaratanana Massif, c. 100 km southwest Daraina. Detailed...
Sapindales is an angiosperm order of high economic and ecological value comprising nine families, c. 479 genera, 6570 species. However, family subfamily relationships in remain unclear, making reconstruction the order's spatio-temporal morphological evolution difficult. In this study, we used Angiosperms353 target capture data to generate most densely sampled phylogenetic trees date, with 448 samples 85% genera represented. The percentage paralogous loci allele divergence was characterized...
Disjunctive distributions across paleotropical regions in the Indian Ocean Basin (IOB) often invoke dispersal/vicariance debates. Exacum (Gentianaceae, tribe Exaceae) species are spread around IOB, Africa, Madagascar, Socotra, Arabian peninsula, Sri Lanka, India, Himalayas, mainland Southeast Asia including southern China and Malaysia, northern Australia. The distribution of this genus was suggested to be a typical example vicariance resulting from breakup Gondwanan supercontinent. molecular...
Abstract A major problem in establishing effective protocols for conserving Madagascar's biodiversity is the lack of reliable information identification priority sites need protection. Analyses field data and from herbarium collections members plant family Pandanaceae (85 spp. Pandanus ; 6 Martellidendron ) showed how risk extinction assessments can inform conservation planning. Application IUCN Red List categories criteria that 91% species are threatened. Mapping occurrence revealed centres...
Background and aims -Recent studies have adopted a broad definition of Sapindaceae that includes taxa traditionally placed in Aceraceae Hippocastanaceae, achieving monophyly but yielding family difficult to characterize for which no obvious morphological synapomorphy exists.This expanded circumscription was necessitated by the finding monotypic, temperate Asian genus Xanthoceras, historically tribe Harpullieae, is basal within group.Here we seek clarify relationships Xanthoceras based on...
Hanes, M.M., G.E. Schatz & M.W. Callmander (2020). Transfer of the Malagasy genera Humbertianthus and Macrostelia to Hibiscus (Malvaceae) with description four new species. Candollea 75: 193–202. In English, English French abstracts.Two species genus Hochr. are transferred L. two combinations proposed: calyculatus (Hochr.) M. Callm. involucratus Hanes The monotypic its single cardiostegius was defined as a taxon in bud stage represented unopened flowering collections laurinus Baill. Several...
Lowry II, P.P., M.W. Callmander & R. Spichiger (2020). Polysciadis (Araliaceae) species nova e Madagascaria in honorem Luciani Bernardii felsinei nominata. Candollea 75: 107–114. In English, English and French abstracts.Polyscias bernardiana Callm., an easily recognized new from east-central Madagascar, including the Ambatovy mine site several protected areas, is described honor of Luciano Bernardi (1920–2001), a 20th century explorer-naturalist who has contributed more to our knowledge...
The genus Vitex L. (Lamiaceae, Viticoideae) comprises 45 native species in Madagascar, all but one of which are endemic to the country. Several new still be described, and we propose here three from littoral forests: V. mcphersonii Callm. & Phillipson, rabenantoandroi zigzag Phillipson. These distinctive grow threatened forests east coast Madagascar. risk extinction these was assessed following IUCN Red List Criteria, revealing that should as “Vulnerable,” “Near Threatened,” “Critically...
Abstract The Global Strategy for Plant Conservation (GSPC) sets a series of ambitious targets 2010 to stem the loss plant diversity. Target 2 calls preliminary assessment conservation status all known species, at national, regional and international levels, but with less than 3% global diversity assessed date, process must be greatly accelerated. This can best done by mobilizing taxonomists identify species that are threatened (or potentially threatened) using available distribution data...
Hardion, L., R. Verlaque, M. W. Callmander & B. Vila (2012). Arundo micrantha Lam. (Poaceae), the correct name for mauritanica Desf. and mediterranea Danin. Candollea 67: 131–135. In English, English French abstracts.Arundo (Poaceae) was validly published by Lamarck in 1791 but has been overlooked literature. Based on recent taxonomic phylogenetic studies, this is rehabilitated to designate a circum-Mediterranean taxon, with Danin as later synonyms. For first time, recorded Flora of France...
There is increased evidence that incorporating evolutionary history directly in conservation actions beneficial, particularly given the likelihood extinction not random and phylogenetic diversity (PD) lost at higher rates than species diversity. This even more compelling biodiversity hotspots, such as Madagascar, where less 10% of original vegetation remains. Here, we use Leguminosae, an ecologically economically important plant family, a combination phylogenetics distribution modelling, to...
Snow, N., J.W. Dawson, M.W. Callmander, K. Gandhi & J. Munzinger (2016). New species, new combinations, and lectotypifications in Caledonian Eugenia L. (Myrtaceae). Candollea 71: 67–81. In English, English French abstracts.Five species of (Myrtaceae) are proposed from Caledonia: amosensis N. homedeboana sicifolia Dawson tchambaensis tiwakaensis Snow. The provided with detailed descriptions, digital images, comments on morphology ecology, conservation assessments following IUCN Red List...
Hong-Wa, C., M. W. Callmander & C. Baider (2014). Taxonomy and conservation of the genus Noronhia Thouars (Oleaceae) in Mauritius. Candollea 69: 157–163. In English, English abstract. The (Oleaceae), formerly known only from Madagascar Comoros, also occurs Continental Africa Mascarene Islands. We present a taxonomic overview Two new combinations are proposed for Mauritian endemic species previously recognized Chionanthus L. described Olea L.: macrophylla (Baker) Hong-Wa Callm. obovata while...
Callmander, M. W., P. B. Phillipson & G. E. Schatz (2014). Towards a revision of the genus Vitex L. (Lamiaceae) in Madagascar I : distinctive new species from North-eastern Madagascar. Candollea 69: 141–147. In English, English and French abstracts. A review context “Catalogue Vascular Plants Madagascar” project has led us to discover number probable uncover other necessary taxonomic changes for genus. One particularly species, lowryi Callm., Schatz, is described illustrated this article,...