Chiloschistaexuperei, a new orchid addition to China from Yunnan

( 1., Jinghong 666100, China; 2.,,, Mengla 666303, China; 3., Beijing 100049, China )

杨正斌1, 余东莉1, 李剑武2, 刘　强2,3*

( 1. 西双版纳傣族自治州国家级自然保护区科研所， 云南 景洪 666100； 2. 中科院西双版纳热带植物园 综合保护中心， 云南 勐腊 666303； 3. 中国科学院大学， 北京 100049 )

YANG Zheng-Bin1, YU Dong-Li1, LI Jian-Wu2, LIU Qiang2, 3*



Chiloschistaexuperei, a new orchid addition to China from Yunnan

( 1.XishuangbannaNatureReserveResearchInstitution, Jinghong 666100, China; 2.CenterforIntegrativeConservation,XishuangbannaTropicalBotanicalGarden,ChineseAcademyofSciences, Mengla 666303, China; 3.UniversityofChineseAcademyofSciences, Beijing 100049, China )

Abstract:Chiloschistaexupereiis reported from China for the first time. This species was easy identified by its white and tongue shaped mid-lobe from other species.

Key words:Chiloschistaexuperei, Orchidaceae, new record, China

杨正斌1, 余东莉1, 李剑武2, 刘强2,3*

( 1. 西双版纳傣族自治州国家级自然保护区科研所， 云南 景洪 666100； 2. 中科院西双版纳热带植物园 综合保护中心， 云南 勐腊 666303； 3. 中国科学院大学， 北京 100049 )

ChiloschistaLindley (Orchidaceae, Aeridinae) is a genus of epiphytes and known as “plants without leaves”, well presented from the Indian subcontinent through SE Asia to Australia. This genus including about 10 species and 3 species had been so far found in China (Chen & Wood, 2009). The following described species is a new record ofChiloschistafor China.

Chiloschistaexuperei(Guillaumin) Garay.in Bot.Mus.Leafl.23: 166.1972.——TaeniophyllumexupereiGuillaumin.in Bull.Mus.Hist.Nat.Paris, sér.2, 29: 346.1957.白花异型兰(新拟)(Fig. 1)

Stem inconspicuous, with long flattened roots, leafless. Inflorescences 1-3, pendulous, densely pubescent, racemose, (7-10) cm, laxly 4-8 flowered; peduncle and rachis densely pubescent; floral bracts 2.8 mm, ovate-lanceolate, glabrous, membranous, acute. Flowers white, with brownish red stripes between the two lateral lobes; pedicle and ovary 4.5 mm, pubescent. Dorsal sepal nearly broadly elliptic, 5.4 mm × 3.3 mm, sparsely pubescent abaxially, subobtuse; lateral sepals slightly oblique, broadly ovate or elliptic,5.1 mm × 3.1 mm, sparsely pubescent near abaxial base; petals suboblong, 5.4 mm × 3.1 mm, obtuse; lip 3-lobed, lateral lobes erect, falcate-oblong, rounded, 4.4 mm × 2.3 mm; mid-lobe tongue shaped, 2.3 mm × 0.9 mm, base with a globular callus, densely pubescent. Column ca. 2.0 mm, foot ca. 2 mm, anther cap with 2 filiform appendages on both sides. Flowering time: May.

Distribution: Thailand, Vietnam, Cambodia, Laos, China.

China.Yunnan：Menghai，epiphytic on trunks in monsoon evergreen broad leaved forest, 1 200 m, 2014-05-16, LIU Qiang 158 (HITBC).

1a. Flower color white and tongue shaped mid-lobe

C.exuperei

1b. Flowercolor yellow or white green, mid-lob not tongue shaped

2a. Sepals and petals densely pubescent abaxially; inflorescences to 26 cm

C.yunnanensis

2b. Sepals and petals nearly glabrous or only sparsely pubescent abaxially; inflorescences(1.5-15)cm.

3a. Mid-lobe of lip conspicuous, much longer than lateral lobes

C.guangdongensis

3b. Mid-lobe of lip very small, much shorter than lateral lobes

C.segawae

Chiloschistaexupereiwas first named by Guillaumin in 1957, and was categorized into theTaeniophyllumgenus.Until the 1972, Garay believed that it should belong toChiloschistagenus (Seidenfaden, 1992). This species was easy identified by its white color and tongue shaped mid-lobe from other species.We only found it in the serious-fragmented forest (Holly Hill of Dai people) and roadside. Along with fast expansion of rubber and tea plantations in the recent years, the habitat of this species was gradually encroached, and its survival was under severe threat.

Reference:

CHEN SC, WOOD JJ, 2009.ChiloschistaLindley[M]//WU ZY, RAVEN PH, HONG DY (eds). Flora of China. Beijing: Science Press; St. Louis: Missouri Botanical Garden Press, 25: 470-471.

SEIDENFADEN G,1992. The orchids of Indochina[J]. Opera Bot, 114:502.

中国兰科异型兰属一新记录种——白花异型兰

YANG Zheng-Bin1, YU Dong-Li1, LI Jian-Wu2, LIU Qiang2, 3*

关键词：白花异型兰， 兰科， 新记录， 中国

摘要：报道了中国兰科一新记录种，白花异型兰Chiloschistaexuperei(Guillaumin) Garay。该种由于其花的颜色为白色、唇瓣中裂片基部具球状、密被毛的胼胝体而明显不同于该属内其它种。

DOI:10.11931/guihaia.gxzw201406018

收稿日期:2014-06-13修回日期： 2014-07-31

基金项目：国家自然科学基金(Y2GJBZ1B01)；云南省自然科学基金(2013FB080)[Supported by the National Natural Science Foundation of China(Y2GJBZ1B01); Natural Science Foundation of Yunnan (2013FB080)]。

作者简介：杨正斌 (1967-), 男，云南景洪人，高级工程师, 主要从事资源环境监测,(E-mail)bingxsbn@163.com。 *通讯作者： 刘强，在职博士，助理研究员，主要从事兰科植物分类与保护生物学方面的研究,(E-mail)liuq@xtbg.org.cn。

CLC number：Q948.2

Document code：AArticle ID： 1000-3142(2016)05-0629-03

杨正斌,余东莉,李剑武，等. 中国兰科异型兰属一新记录种——白花异型兰[J]. 广西植物，2016，36(5)：629-631

YANG ZB,YU DL, LI JW，et al.Chiloschistaexuperei, a new orchid addition to China from Yunnan[J]. Guihaia，2016，36(5)：629-631