18种(1变型)鼠尾草属植物叶表皮及表皮毛微形态特征研究

王发松<sup>1; 2</sup>; 温铁龙<sup>3</sup>; 牛 苗<sup>3; 4</sup>; 李 琳<sup>3*</sup>

引用本文:	王发松, 温铁龙, 牛苗, 李琳.18种(1变型)鼠尾草属植物叶表皮及表皮毛微形态特征研究[J].广西植物,2015,35(2):178-186.[点击复制]
	WANG Fa-Song, WEN Tie-Long, NIU Miao, LI Lin.A new record of Cleisostoma(Orchidaceae)from China[J].Guihaia,2015,35(2):178-186.[点击复制]

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18种(1变型)鼠尾草属植物叶表皮及表皮毛微形态特征研究
王发松^1,2, 温铁龙³, 牛苗^3,4, 李琳^3*
1. 生物资源保护与利用湖北省重点实验室, 湖北恩施 445000;2. 湖北民族学院化学与环境工程学院, 湖北恩施 445000;3. 中国科学院华南植物园, 广州 510650;4. 中国科学院大学, 北京 100049

摘要:

隔距兰属(Cleisostoma Bl.)是兰科植物中较大的一个属,约有100种,广泛分布于热带、亚热带地区。中国约有16种,其中4种为特有。该文报道了该属一中国新记录——二齿叶隔距兰[Cleisostoma aspersum(Rchb. f.)Garay],并提供描述和照片,目前该种仅见于云南。与近缘种类相比,本种具有以下鉴别特征:叶齿状二裂; 唇瓣中裂片肥厚,前缘钝; 蕊喙圆锥状,先端歪斜; 药帽喙状等。在花部形态上,该种与Cleisostoma discolor Lindl.相似,然而后者的唇瓣中裂片明显较薄,匙状方形,并且具有啮齿状边缘,易于区别。

关键词: 隔距兰属二齿叶隔距兰兰科新记录中国Fig.

DOI：10.11931/guihaia.gxzw201403010

分类号:Q949.71

基金项目:

A new record of Cleisostoma(Orchidaceae)from China

WANG Fa-Song^{1, 2}, WEN Tie-Long³, NIU Miao^3,4, LI Lin^3*

1. Key Laboratory of Biologic Resources Protection and Utilization of Hubei Province, Enshi 445000, China;2. College of Chemistry and Environmental Engineering, Hubei University for Nationalities, Enshi 445000, China;3. South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;4. University of Chinese Academy of Sciences, Beijing 100049, China

Abstract:

Cleisostoma Bl. is an orchid genus with approximately 100 accepted species widely distributed in tropical and subtropical areas. There are about 16 species in China(4 endemic)before. Cleisostoma aspersum(Rchb. f.)Garay, so far known only from Yunnan, is reported from China. A detailed description and photos are provided. This species is easily distinguished from its relatives by bilobulate leaves, fat and obtuse midlobe of the lip, conical rostellum with an oblique apex, and beaked operculum. It is similar to Cleisostoma discolor Lindl. in floral morphology, but the latter differs by having a lip with thin spathulate truncate midlobe, with erose front edge.

Key words: Cleisostoma Cleisostoma aspersum Orchidaceae new record China