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        Chiloschistaexuperei, a new orchid addition to China from Yunnan

        2016-03-15 14:59:42Jinghong666100ChinaMengla666303ChinaBeijing100049China
        廣西植物 2016年5期
        關(guān)鍵詞:新記錄蘭科中國(guó)

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

        楊正斌1, 余東莉1, 李劍武2, 劉 強(qiáng)2,3*

        ( 1. 西雙版納傣族自治州國(guó)家級(jí)自然保護(hù)區(qū)科研所, 云南 景洪 666100; 2. 中科院西雙版納熱帶植物園 綜合保護(hù)中心, 云南 勐臘 666303; 3. 中國(guó)科學(xué)院大學(xué), 北京 100049 )

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

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        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

        楊正斌1, 余東莉1, 李劍武2, 劉強(qiáng)2,3*

        ( 1. 西雙版納傣族自治州國(guó)家級(jí)自然保護(hù)區(qū)科研所, 云南 景洪 666100; 2. 中科院西雙版納熱帶植物園 綜合保護(hù)中心, 云南 勐臘 666303; 3. 中國(guó)科學(xué)院大學(xué), 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.白花異型蘭(新擬)(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.

        中國(guó)蘭科異型蘭屬一新記錄種——白花異型蘭

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

        關(guān)鍵詞:白花異型蘭, 蘭科, 新記錄, 中國(guó)

        摘要:報(bào)道了中國(guó)蘭科一新記錄種,白花異型蘭Chiloschistaexuperei(Guillaumin) Garay。該種由于其花的顏色為白色、唇瓣中裂片基部具球狀、密被毛的胼胝體而明顯不同于該屬內(nèi)其它種。

        DOI:10.11931/guihaia.gxzw201406018

        收稿日期:2014-06-13修回日期: 2014-07-31

        基金項(xiàng)目:國(guó)家自然科學(xué)基金(Y2GJBZ1B01);云南省自然科學(xué)基金(2013FB080)[Supported by the National Natural Science Foundation of China(Y2GJBZ1B01); Natural Science Foundation of Yunnan (2013FB080)]。

        作者簡(jiǎn)介:楊正斌 (1967-), 男,云南景洪人,高級(jí)工程師, 主要從事資源環(huán)境監(jiān)測(cè),(E-mail)bingxsbn@163.com。 *通訊作者: 劉強(qiáng),在職博士,助理研究員,主要從事蘭科植物分類與保護(hù)生物學(xué)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

        楊正斌,余東莉,李劍武,等. 中國(guó)蘭科異型蘭屬一新記錄種——白花異型蘭[J]. 廣西植物,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

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