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A new species (Begoniagiganticaulis) of Begoniaceae from southern Xizang (Tibet) of China.

ABSTRACT: Begoniagiganticaulis, a huge new species in Begoniasect.Platycentrum of Begoniaceae from southern Xizang (Tibet) of China, is described. Morphologically, it is mostly similar to B.longifolia and B.acetosella, but clearly differs from the former mainly by its dioecious and taller plants, sparse hairs on abaxial veins, longer inflorescence, unique shape of fruits, and differs from the latter mainly by its late and longer flowering time, 6-tepals of female flower and 3-loculed ovary. The phylogenetic analyses also support the separation of the new species from other taxa. Based on the current data, its conservation status is assigned to Endangered (B2a) according to the IUCN Red List Categories and Criteria.

SUBMITTER: Tian DK

PROVIDER: S-EPMC8738629 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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A new species (Begoniagiganticaulis) of Begoniaceae from southern Xizang (Tibet) of China.

Tian Dai-Ke DK Wang Wen-Guang WG Dong Li-Na LN Xiao Yan Y Zheng Min-Min MM Ge Bin-Jie BJ

PhytoKeys 20211230

Begoniagiganticaulis, a huge new species in Begoniasect.Platycentrum of Begoniaceae from southern Xizang (Tibet) of China, is described. Morphologically, it is mostly similar to B.longifolia and B.acetosella, but clearly differs from the former mainly by its dioecious and taller plants, sparse hairs on abaxial veins, longer inflorescence, unique shape of fruits, and differs from the latter mainly by its late and longer flowering time, 6-tepals of female flower and 3-loculed ...[more]

PMID: 35068975

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