A new and endemic species of Drosera (Droseraceae) from Madagascar

被引：1

作者：

Fleischmann, Andreas S. ^{[1
,2
]}

Rakotoarivelo, Nivo H. ^{[3
]}

Roccia, Aymeric

Gonella, Paulo M. ^{[4
]}

Andriamiarisoa, Lala Roger ^{[3
]}

Razanatsima, Aina ^{[3
]}

Rakotoarivony, Fortunat ^{[3
]}

机构：

[1] Bot Staatssnmmlung Munchen SNSB BSM, Menzinger Str 67, D-80638 Munich, Germany

[2] Ludwig Maximilians Univ Munchen, Ctr Geobiol & Biodivers Res, GeoBioctr LMU, Munich, Germany

[3] Missouri Bot Garden, Madagascar Res & Conservat Program, BP 3391, Antananarivo 101, Madagascar

[4] Inst Nacl Mata Atlantica INMA, Av Jose Ruschi 4, Santa Teresa, ES, Brazil

来源：

PLANT ECOLOGY AND EVOLUTION | 2020年 / 153卷 / 02期

关键词：

Non-core Caryophyllales; Drosera subgenus Drosera; taxonomy; carnivorous plants;

D O I：

10.5091/plecevo.2020.1705

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Background and aims - This study is part of an ongoing revision of the world Drosera species. During herbarium revisions of Drosera from Madagascar, a new species was identified and is here described. Methods - The species' morphology is described based on herbarium studies and observation of living plants in situ, and ecological notes from field observations are provided. The species is compared and contextualizecl within the current subgeneric classification of Drosera. Key results - The new species, Drosera arachnoides, is recognized as most closely related to another Malagasy-endemic, D. humbertil, from which it is morphologically and ecologically distinct. The new species is placed within D. subg. Drosera sect. Ptycnostigma. Based on the restricted occurrence, the species is assessed as Vulnerable, following IUCN categories and criteria. A key to the Drosera species from Madagascar is provided. Conclusion - Drosera arachnoides is the second endemic Drosera species in Madagascar and raises the total number of species on the island to six.

引用

页码：283 / 291

页数：9

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