A Checklist with Three New Species and Two New Country Records of Begonia from Dibang Valley, Arunachal Pradesh, India

被引：11
|
作者：
Wahlsteen, Eric [1 ]
Borah, Dipankar [2 ]
机构：
[1] Lund Univ, Bot Museum, POB 117, SE-22100 Lund, Sweden
[2] Goalpara Coll, Dept Bot, Goalpara 783101, Assam, India
来源：
BRITTONIA | 2022年 / 74卷 / 04期
关键词：
New taxa; cpDNA; Phylogeny; Arunachal Pradesh; ASIAN BEGONIA; DIFFORMIS;
D O I：
10.1007/s12228-022-09725-9
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
A synoptical treatment of the Begonia flora of the Dibang Valley in eastern Arunachal Pradesh, India is provided, along with the descriptions of three new species. In total, eight species of Begonia are recognized as occurring in the area, of which B. atrofusca, B. lorentzonii and B. rushforthii are new to science, while B. acetosella var. hirtifolia and and B. pseudoheydei are new records for India. A phylogenetic analysis of molecular data was performed to clarify the affinities of the treated species within the genus. Three chloroplast regions (rpl32-trnL spacer, ndhA intron and ndhF-rpl32 spacer) were sequenced and used to build a maximum likelihood phylogeny revealing that the Dibang taxa belong to two main groups of B. sect. Platycentrum.
引用
收藏
页码：403 / 418
页数：16
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