Peliosanthes cupuliformis (Asparagaceae), a new species from central Laos

We describe a new species, Peliosanthes cupuliformis, from central Laos with photographic illustrations and relevant taxonomic data. The species appears to be a local endemic confined to a karstic limestone area of Khammouane Province (Boualapha District). It is readily distinguishable from all othe...

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Bibliographic Details
Published in:Nordic journal of botany 2020-09, Vol.38 (9), p.n/a
Main Authors: Averyanov, Leonid V., Tanaka, Noriyuki, Nguyen, Khang Sinh, Maisak, Tatiana V.
Format: Article
Language:English
Subjects:
Congeners
Convallariaceae
endemism
flora of Laos
Identification keys
Indochina
Limestone
New species
plant diversity
plant taxonomy
Stigmas (botany)
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Description
Summary:We describe a new species, Peliosanthes cupuliformis, from central Laos with photographic illustrations and relevant taxonomic data. The species appears to be a local endemic confined to a karstic limestone area of Khammouane Province (Boualapha District). It is readily distinguishable from all other congeners by a suit of unique traits such as the dwarf habit, laterally revolute perianth segments, short truncate annular or cup‐shaped staminal corona, and broadly conoid pistil with a centrally slightly sunken stigma. Its relationship to P. divaricatanthera known from central Vietnam and Yunnan, China, is briefly discussed. A preliminary identification key to all the species of Peliosanthes so far known from Laos is also provided.
ISSN:0107-055X
1756-1051
DOI:10.1111/njb.02851