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Peliosanthes cupuliformis (Asparagaceae), a new species from central Laos
Author(s) -
Averyanov Leonid V.,
Tanaka Noriyuki,
Nguyen Khang Sinh,
Maisak Tatiana V.
Publication year - 2020
Publication title -
nordic journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.333
H-Index - 33
eISSN - 1756-1051
pISSN - 0107-055X
DOI - 10.1111/njb.02851
Subject(s) - biology , asparagaceae , perianth , botany , karst , taxonomy (biology) , stamen , paleontology , pollen
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.