全 文 ：武汉植物学研究 2008，26(3)：255～258
Journal of Wuhan Botanical Research
广东发现细裂玉凤花
陈利君 r，饶文辉
(1．全国兰科植物种质资源保护中心，深圳 518114；2．深圳市兰科植物保护研究中心 ，深圳 518114)
摘 要 ：2007年 9月 ，对广东省惠州市新墟镇白云嶂进行植物学考察时，在一个斜坡上的一片次生阔叶林的潮湿
林缘，发现了兰科植物细裂玉凤花Habenaria lept。l。ba Benth．。此植物的模式产地为香港，第一次采集时问为1857
年 ，后来虽在香港仍有发现，但事隔 150年后才在广东发现。
关键词：Orehidaeeae；Habenaria leptoloba；发现；香港 ；广东
中图分类号：Q949．71 8．43 文献标识码：A 文章编号：1000—470X(2008)03—0255—04
The Occurrence of Habenaria leptoloba(Orchidaceae)in Guangdong
CHEN Li—Jun 一．RA0 Wen—Hui ，
(1．The National Orchid Conservation Center，Shenzhen 518114，China；2．The Orchid Conservation&
Research Center ofShenzhen，Shenzhen 518114，China)
Abstract：0n a botanical survey to the Baiyunzhang Mountain of Xinxu，Huizhou City，Guangdong Pro—
vinee in September 0f 2007．an orchid．Habenaria leptoloba Benth。，was found growing on the humid
D1aees on the margins of a secondary broad—leaved forest on slope．This species was first collected from
Hong Kong in 1 857．Ahhough it was recollected in Hong Kong for several times，it was not until very re—
cently when it occurred in Guangdong as late as 150 years after．
Key words：Orchidaceae；Habenaria leptoloba；Occurrence；Hong Kong；Guangdong
A botanical trip was made to the Baiyunzhang
Mountain of Xinxu，Huizhou City，Guangdong Province
in September of 2007，where the vegetation is rich in
plants，such as the species of Itea，Rapenea，Scheflera，
Adina，Eurya，Ilex and Wikstroemia．Among the orchids
such as Paphiopedilum purpuratum，Lipar~ nervosa，
athoglottis pubescens，Diploprora championii，Appen—
dicula cornuta，Coelogyne fimbriata，etc。，a particularly
noteworthy species was found growing on the margins of
a secondary broad—leaved forest on the humid slope。It
is Habenaria leptoloba Benth．¨ (Fig。1)。The first
collection of this species was in 1 857。Ahhough it has
been recollected in Hong Kong for several times since
then，it was not until very recently when it occured in
Guangdong as late as 150 years after。
Bentham’s description of Habenaria leptoloba is
identical to the Huizhou plants，except the length of the
bracts，which are changeable in the same species of
many orchids。Rofe(1903) ，Schlechter(1919) 引，
Hu(1974) ]and Lang(1999) considered it to be
exclusively found in Hong Kong。Ahhough the Plant
D e y Inventory of Guangdong reported on its occur—
rence in some islands at the mouth of the Zhujiang Ri—
ver
[6。
．
it was n0t ree0rded in the Flora of Guangdong[7。
．
This is in fact the first occurence of H．1eptoloba in
Guangdong， and an indication of phytogeographical
relations between this region and Hong Kong。
The precise locality of our colection is at
22。53。126 N．114。17．904 E．about 75 km from the
type locality of Hong Kong。There were nine populations
of this species there，ranging along a slope of 300×20
square meters by the streamside。Each population has
8—23 individuals growing vigorously。Approximately 50
percent of the individuals seen flowered，and almost all
of them bore fruit；many seedlings had been found in
the populations．This is no doubt an indication that the
climate there is very suitable for their growth。Here，this
species is described and ilustrated(Fig．2)based on
Received date：2007—09—19，Accepted date：2007—12—04．
Foundation item：Program granted by National Program for Wild Life Conservation and Nature Reserve Construction，and by Science＆ Technology
Plan of Shenzhen(No．2006464)．
Biography：Chen“一Jun(1980一)，female，engineer，mainly engaged in Orchidaceae(E—mail：conservation@sinieaorehid．org)．
重庆维普 http://www.cqvip.com
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258 武 汉 植 物 学 研 究 第26卷
acute．Raceme 7— 12 cm long，8— 13一flowered；floral
bracts lanceolate，6—8 mm long，sho~er than ovary，
apex acuminate；ovary resupinate，cylindrical—fusiform，
including pedicel 9 — 1 1 mm long，glabrous．Sepals
greenish；dorsal sepal broadly ovate，concave，3—
3．5×2．8—3 mm ，apex obtuse；lateral sepals spreading
or deflexed，obliquely ovate—lanceolate，4 —4．5×2—
2．2 mm，1一veined，apex obtuse．Petals erect，whitish
green，obliquely ovate，concave，3．8—4×2—2．2 mm，
1-veined，apex obtuse；labelum yellow，relatively long，
deeply 3一lobed from base；lobes linear；lateral lobes
divergent，6 —6．5 mm long，narrowed toward apex，
obtuse；mid—lobe 4 —5 mm long，apex obtuse；spur
pendulous OF slightly curved，cylindrical，13— 15 mm
long，longer than ovary，slender，slightly thickened，
apex obtuse．F1．Aug—Sep．
Specimens cited：China，Guangdong，Huizhou，Z．
J．Liu 3605(NOCC!)．
Habitat：Humid places in forests or grasslands；
200—600 m altitude．
Distribution：Hong Kong；Guangdong(Huizhou)．
References：
[1] Bentham G．Flora Hongkongensis[M]．Reeves，London：s．n．，
1861．362．
[2] Rolfe RA．Orchidaceae[J]．JLinn SocBot，1903，36：59．
[3] Schlecbter R．Orcbideologieae Sino-Japonicae prodomus．Eine K5一
tische Besprechung der Orehideen Ost-Asiens．Repertorium．
Speeierum Novarum Regni Vegetabilis[J]．Fed& Beihefle，1919，
4：130．
[4] Hu s Y，The Orchidaceae of China[J]．Quan J Taiwan Mus，
1974，27(1—2)：166．
[5] Lang K Y．FIora Reipublicae Popularis Sinieae[M]．Beijing：Sci，
enee Press，1999．Tomus 17：483．
[6] Ye H，Peng S．Plant Diversity Inventory of Guangdong[M]．Guan，
gzhou：W0dd Book Press．2006．565．
[7] Wu T．Flora of Guangdong[M]．Guangzhou：Guangdong Science
and Technology Press，2006，VolumeⅦ ：324—499．
重庆维普 http://www.cqvip.com