Cytological and phylogenetic study of Petrocosmea hexiensis (Gesneriaceae), a new species from Chongqing, China

被引:13
作者
Qiu, Zhi-Jing [1 ]
Wang, Xiao-Ling [1 ,3 ]
Liu, Zheng-Yu [2 ]
Yang, Jian-Fen [1 ]
Zhang, Shou-Zhou [1 ]
机构
[1] Shenzhen & Chinese Acad Sci, Fairylake Bot Garden, Lab Southern Subtrop Plant Div, Shenzhen 518004, Peoples R China
[2] Inst Chongqing Med Plant Cultivat, Chongqing 408435, Peoples R China
[3] South China Agr Univ, Coll Life Sci, Guangzhou 510642, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.11646/phytotaxa.74.1.2
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
A new species, Petrocosmea hexiensis, is described and illustrated from Hexi in the Nanchuan district of Chongqing, China. The new species is similar to Petrocosmea duclouxii, but differs mainly in having a longer corolla tube and ovate-rhombic to rhombic leaves with truncated bases. Cytological and phylogenetic studies of the new species demonstrate that it has the same chromosome number as other species of Petrocosmea and that its closest relative is P. duclouxii.
引用
收藏
页码:30 / 38
页数:9
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