Euphorbia motuogensis (Euphorbiaceae), a new species from Xizang, China

被引：1

作者：

Li, Man-Ting ^{[1
,2
]}

Lan, Xiao-Zhong ^{[3
,4
]}

Zuo, You-Wei ^{[1
,2
]}

Deng, Hong-Ping ^{[1
,2
]}

机构：

[1] Southwest Univ, Sch Life Sci, Ctr Biodivers Conservat & Utilizat, Chongqing 400715, Peoples R China

[2] Southwest Univ, Sch Life Sci, Key Lab Eco Environm Three Gorges Reservoir Reg, Chongqing 400715, Peoples R China

[3] Tibet Agr & Anim Husb Univ, Prov & Ministerial Cofounded Collaborat Innovat C, Nyingchi 860000, Xizhang, Peoples R China

[4] Tibet Agr & Anim Husb Univ, Ctr Xizang Chinese Tibetan Med Resource, Nyingchi 860000, Xizhang, Peoples R China

来源：

PHYTOTAXA | 2021年 / 527卷 / 02期

关键词：

Euphorbia; Euphorbiaceae; morphology; taxonomy; CLASSIFICATION; PHYLOGENETICS;

D O I：

10.11646/phytotaxa.527.2.3

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Euphorbia motuogensis M. T. Li, X. Z. Lan, H. P. Deng & W. L. Zheng, sp. nov., a new species from Motuo, Tibet, China, is described and illustrated here. It is closely similar to Euphorbia sikkimensis in having terete root, alternate leaves, well developed pseudoumbellate inflorescence, cyathium, smooth and glaborus capsule, but Euphorbia motuogensis is clealy distinguishable by its pilose stems, involucral leaves color, secondary involucral leaves absent, cyathophylls number and color, and five similar glands. Furthermore, molecular phylogenetic analyses of sequences from both nuclear ribosomal ITS confirm that this species is distinct from morphologically similar species in this subgenus.

引用

页码：107 / 116

页数：10

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