A new species of Sipapoantha (Gentianaceae: Helieae) from northern Brazil

被引：2
|
作者：
Lepis, K. B. [1 ]
Maas, P. J. M. [2 ]
Struwe, L. [1 ]
机构：
[1] Rutgers State Univ, Dept Plant Biol & Pathol, New Brunswick, NJ 08901 USA
[2] Wageningen Univ, Netherlands Ctr Biodivers Naturalis, Sect NHN, Biosystemat Grp,Herbarium Vadense, NL-6703 BL Wageningen, Netherlands
来源：
BLUMEA | 2011年 / 56卷 / 01期
基金：
美国国家科学基金会;
关键词：
floristics; Gentianaceae; Helieae; morphology; Neotropics; new taxa; Sierra Baeta; South America;
D O I：
10.3767/000651911X568585
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
A new species from Gentianaceae (tribe Helieae) is described from northern Brazil. Sipapoantha obtusisepala sp. nov. is distinct from the previously single member of the genus, Sipapoantha ostrina, by having a woody and branched habit, sessile and ovate leaves with an acute apex, and a smaller calyx with circular lobes. Sipapoantha obtusisepala is based on somewhat incomplete material and tentatively placed in Sipapoantha based on the presence of key generic characters such as coriaceous leaves with strongly revolute margins and blue corollas. It has only been recorded from one locality in the Brazilian-Guyana border area in the state of Roraima.
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页码：28 / 32
页数：5
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