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Bothriospermum longistylum sp. nov. (Boraginaceae) from north China
Author(s) -
Lin QinWen,
Le ChiToan,
Njenga Dennis Mwithukia,
Hao YunQing,
Liu Bing,
Yu WenTao,
Chen ZhiDuan
Publication year - 2018
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.01694
Subject(s) - paraphyly , biology , boraginaceae , appendage , phylogenetic tree , key (lock) , genus , plastid , botany , molecular phylogenetics , evolutionary biology , zoology , ecology , clade , chloroplast , genetics , gene
Based on field investigations as well as morphological and molecular systematic studies we found a new species of Bothriospermum which can be easily distinguished from all other known congeneric species by its unlobed faucal appendages and very long styles. We conducted molecular phylogenetic analyses based on a combined dataset from nr ITS, plastid rps16 , trn L ‐trn F and trn G ‐trn S regions. The results indicated that the new species indeed belongs in Bothriospermum and that it is well separated from other congeneric clusters, but that the genus Bothriospermum is paraphyletic with Nihon and Thyrocarpus clusetered within it. As a result, Bothriospermum longistylum sp. nov. is described and illustrated here. A revised key to species of Bothriospermum and a distributional map are also presented.