A new species and new section of Viola (Violaceae) from Guangdong, China
A new species and new section of Viola (Violaceae) from Guangdong, China
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DOI：
10.11646/phytotaxa.197.1.2
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发表时间：
2015-02-04
期刊：
影响因子：
1.1
通讯作者：
Liao, Wenbo
中科院分区：
文献类型：
--
作者：
Fan, Qiang;Chen, Sufang;Liao, Wenbo
本文记述了广东丹霞山堇菜属（Viola hybanthoides）一新种廖炜斌等。紫堇（Viola hybanthoides）最显著的特征是半灌木习性，前花瓣具有长茎状爪（可达3.5毫米，约占花瓣长度的1/3），上部花瓣非常短（仅2.5-3毫米长，不到侧花瓣长度的1/2），所有这些特征都是一些紫堇属植物所共有的。这个物种的这些特征与所有其他堇菜物种不同，堇菜通常是草本植物，前花瓣没有长长的茎状爪，上部花瓣更长（通常超过8毫米长）。在新种的基础上，介绍了一种新的堇菜科——丹霞堇菜（Danxiaviola）。为了区分中国的中提琴部分，提供了一个识别密钥。
Viola hybanthoides W.B. Liao et Q. Fan (Violaceae), a new species from Mount Danxia of Guangdong province in China, is described and illustrated. The most distinctive characters of Viola hybanthoides are the subshrub habit, the anterior petal with a long stalk-like claw (up to 3.5 mm, ca. 1/3 of the petal's length), and the very short upper petals (only 2.5-3 mm long, less than 1/2 of the lateral petals' length), all of which are characters shared with some Hybanthus species. These characters of this species are distinguishable from all other Viola species, which are usually herbs, and have the anterior petal without a long stalk-like claw and much longer upper petals (usually more than 8 mm long). Based on the new species, a new Viola section Danxiaviola W.B. Liao et Q. Fan is described. To distinguish Viola sections in China, an identification key is provided.