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| Begonia longlingensis Y.H.Tan & H.B.Ding, in Ding, Hu, Gong, ... et Tan, 2022. |
Abstract
Begonia longlingensis Y.H.Tan & H.B.Ding, a new species of Begoniaceae from Southwest Yunnan, China, is described and illustrated. Morphologically, it is primarily similar to B. wenshanensis in same section but differs by its hairy inflorescences and ovary (vs. glabrous), five tepals of pistillate flower (vs. three tepals), bracteoles under the ovary (vs. without) and rhizomes well developed (vs. poorly developed).
Keyword: Begonia sect. Diploclinium, B. wenshanensis, bracteole, morphology, new taxon
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| Begonia longlingensis Y.H.Tan & H.B.Ding, sp. nov. A–B. habit; C. rhizome; D. staminate flower (front view); E. staminate flower (back view); F. inflorescence; G. pistillate flower (front view); H. pistillate flowers (back view); I. pistillate flowers; J. fruits; K–L. pistillate flower showing bracteoles under the ovary; M. cross section of fruit. |
Begonia longlingensis Y.H.Tan & H.B.Ding, sp. nov.
龙陵秋海棠
Diagnosis: Begonia longlingensis is morphologically
similar to B. wenshanensis C.M.Hu ex C.Y.Wu & T.C.Ku
(Wu and Ku, 1995: 262) in having similar leaves and
caulescent habit. But it can be distinguished from the
similar species by the following characters: puberulous
inflorescences (vs. glabrous), five tepals of pistillate
flower (vs. three tepals), bracteoles under the ovary (vs.
without), ovary densely red succulent strigose (vs.
glabrous) and rhizomes well developed (vs. poorly
developed).
Etymology: The specific epithet ‘longlingensis’ refers
to the name of Longling County, which includes the type
locality of the new species.
Habitat and Distribution: The new species is
currently known from Longling Xiaoheishan Provincial
Natural Reserve of Baoshan City, and, Linxiang District
of Lincang City, Yunnan Province, China. It grows in
moist environment in broad-leaved evergreen forests, at
2100–2300 m elevation.
Hong-Bo Ding, Xing-Run Hu, Yan-Xiong Gong, Yao-Ke Li, Hai-Zhong Liu, Guo-Qi Luo and Yun-Hong Tan. 2022. Begonia longlingensis, A New Species of Begonia (Begoniaceae) from Yunnan, China. Taiwania. 67(3); 377-379.
