A New Species of Pelexia (Orchidaceae, Spiranthinae) from Sao Paulo, Brazil

被引：2
|
作者：
Ferreira, Alessandro W. C. [1 ]
Lima, Maria Ines S. [2 ]
Pansarin, Emerson R. [3 ]
机构：
[1] Univ Fed Maranhao, BR-65200000 Pinheiro, MA, Brazil
[2] Univ Fed Sao Carlos, Dept Bot, BR-13565905 Sao Carlos, SP, Brazil
[3] Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Preto, Dept Biol, BR-14040901 Ribeirao Preto, SP, Brazil
来源：
NOVON | 2012年 / 22卷 / 02期
关键词：
Atlantic rainforest; cerrado; IUCN Red List; Orchidaceae; Pelexia; Spiranthinae;
D O I：
10.3417/2010102
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
A new species of Pelexia Poit. ex Until. (Orchidaceae, Spiranthinae) occurring in central Sao Paulo, southeastern Brazil, is described and illustrated as P. vinosa A. W. C. Ferreira, M. I. S. Lima & Pansarin. Pelexia vinosa is recognized by its leaves that are present at flowering and its dark purple leaf blades with reddish margins. Inflorescences are sparsely pubescent and reddish. The red sepals contrast with the white hyaline petals and labellum. The species is notable for its spurlike nectary that is parallel and adnate to the ovary. The new species is morphologically similar to P. laxa (Poepp. & Endl.) Lindl. In addition, the need to preserve native areas of the interior of Sao Paulo State (habitat of P. vinosa) is discussed.
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页码：155 / 159
页数：5
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