Gazania lanata and G. splendidissima: Two new species of Asteraceae (tribe Arctotideae) from the Greater Capensis, with an updated key for the genus

被引：6
|
作者：
Magee, A. R. [1 ,2 ]
Boatwright, J. S. [1 ,2 ]
Mucina, L. [3 ]
机构：
[1] S African Natl Biodivers Inst, Compton Herbarium, ZA-7735 Cape Town, South Africa
[2] Univ Johannesburg, Dept Bot & Plant Biotechnol, Johannesburg, South Africa
[3] Curtin Univ Technol, Dept Environm & Agr, Sch Sci, Perth, WA 6845, Australia
来源：
SOUTH AFRICAN JOURNAL OF BOTANY | 2011年 / 77卷 / 01期
关键词：
Arctotideae; Asteraceae; Gazania splendidissima; Gazania lanata; Greater Cape Floristic Region; New species; Taxonomy;
D O I：
10.1016/j.sajb.2010.05.012
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Two new species of Gazania Gaert. (Asteraceae, tribe Arctotideae) from the Greater Cape Floristic Region of South Africa are described. Gazania lanata Magee & Boatwr., a local endemic of dolomite lenses near Robertson, is distinguished by the spatulate to sublyrate, simple or weakly pinnatilobed leaves, the bristle-like hairs along the inflorescence and the densely lanate vestiture of the young growth and involuere. Gazania splendidissima Mucina, Magee & Boatwr. from the arid Namaqualand coast between Port Nolloth and Hondeklipbaai, is distinguished by the suffrutescent habit, semi-succulent leaves with a densely mealy uppermost surface, and prominently maculate involucre. An updated key to the now 18 recognised Gazania species is provided to facilitate identification of these and existing taxa in the genus. (C) 2010 SAAB. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：86 / 93
页数：8
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