免费文献传递   相关文献

Lesliea, a Newly Recorded Genus of Orchidaceae from China

中国兰科一新记录属——袋距兰属



全 文 :中国兰科一新记录属———袋距兰属*
李剑武, 陶国达, 刘摇 强
(中国科学院西双版纳热带植物园, 云南 勐腊摇 666303)
摘要: 报道了中国兰科一新记录属———袋距兰属 (Lesliea)。 袋距兰原记载分布于泰国, 现发现中国云南
西双版纳也有分布, 与近缘属的主要区别为距袋状、 蕊喙长而二裂、 粘盘柄倒圆锥状等。
关键词: 兰科; 新记录; 袋距兰属; 袋距兰
中图分类号: Q 949摇 摇 摇 摇 摇 摇 摇 文献标识码: A摇 摇 摇 摇 摇 摇 摇 文章编号: 2095-0845(2011)06-643-02
Lesliea, a Newly Recorded Genus of Orchidaceae from China
LI Jian鄄Wu, TAO Guo鄄Da, LIU Qiang
(Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, China)
Abstract: Lesliea, a newly recorded genus of Orcihdaceae from Yunnan, China, is reported. This is monotypic ge鄄
nus, differing from its relatives by having saccate spur, long and bifid rostellum and the obconical stipe.
Key words: Orchidaceae; New record; Lesliea; L. mirabilis.
摇 During our botanical trip to Naban River Wa鄄
tershed National Nature Reserve, Xishuangbanna,
Yunnan Province in 2008, an unknown orchid was
collected. Our following taxonomic research indica鄄
ted that it belongs to a little known monotypic genus
reported below, Lesliea.
Lesliea Seidenf., in Opera Bot. 95: 190 (1988).
Type: Lesliea mirabilis Seidenf.
袋距兰属
Epiphytic. Stem short, with few and fleshy
leaves. Roots depressed, fleshy. Inflorescence later鄄
al, longer than leaves, densely with many flowered.
Flowers small, open almost at same time. Sepals
ovate, petals linear, nearly equal in length. Lip ad鄄
nate with column, 3鄄lobed, a callus at base, spur
saccate; column with wings; anther cap beaked,
stipe conical鄄ford; pollinia 2.
Lesliea Seidenf., named after Leslie A. Garay,
is closed to the genus Kingidium P. E. Hunt and
Phalaenopsis Lindl. , but differing from the former
by having saccate spur and the complicated pollina鄄
rium, from the latter by its unique saccate spur,
long and bifid rostellum, and the conical stipe (Sei鄄
denfaden, 1988). Lesliea is previously considered
as endemic genus in Thailand, our researches con鄄
firms its occurrence in China.
Lesliea mirabilis Seidenf., Opera Bot. 95: 190.
1988. ———Doritis mirabilis (Seidenf. ) T. Yukawa
& K. Kita in Acta Phytotax. Geobot. 56 (2): 157.
2005; Phalaenopsis mirabilis (Seidenf. ) Schuit. in
Orchideen J. 14 (2): 62. 2007. Fig. 1: A-B.
袋距兰
Epiphytic. Stem short, less than 1 cm long.
Leaves 2-3, ovate to elliptic, tip unevenly bilobed,
植 物 分 类 与 资 源 学 报摇 2011, 33 (6): 643 ~ 644
Plant Diversity and Resources摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 DOI: 10. 3724 / SP. J. 1143. 2011. 11065
* 基金项目: 院标本馆专项 (08ZK111B02)
Received date: 2011-04-16, Accepted date: 2011-06-08
作者简介: 李剑武 (1983-) 男, 助理实验师, 主要从事植物分类工作。 E鄄mail: ljw@ xtbg. org. cn
ca. 3 -4 cm long, 1. 5 -2. 5 cm wide. Roots de鄄
pressed, fleshy. Inflorescence lateral, a little longer
than leaves, densely with small flowers. Flowers
yellow鄄green. Pedicel with ovary ca. 7 mm long.
Dorsal sepal concave, cymbiform, ca. 2. 7 mm long,
1. 5 mm wide; lateral sepals ovate, oblique, nearly
equals in length. Petals linear, ca. 2. 6 mm long,
1. 3 mm wide. Lip elliptic, 3鄄lobed; lateral lobes
linear, ca. 1. 5 mm long; mid鄄lobe rhombic, ca. 3
mm long, 1. 7 mm wide, base with a ornament, ca.
0. 3 mm long, 2鄄lobed; spur saccate, tip 3鄄lobed,
ca. 1. 5 mm long. Column ca. 2. 5 mm, with a pair
of wings, column foot with 3 conical callus, apex
with 3 dentations. Rostellum bifid, hyaline, de鄄
flexed, acuate. Anther cap galeated, ca. 2. 5 mm
long, 1 mm wide; stipe ca. 2 mm long, obconical;
pollinia 2, cleft, hemispheric. Flowering from Au鄄
gust to October.
Fig. 1摇 Lesliea mirabilis Seidenf. A. Plant; B. Inflorescence
摇 China. Yunnan (云南): Xishuangbanna (西
双版纳), Jinghong (景洪), alt. 680 m, 2010-10
-31, on tree, beside river, Li鄄Jianwu (李剑武) 1
(HITBC).
Distribution: China (Yunnan) and Thailand.
Acknowledgements: We are grateful to officials of Naban
River Watershed National Nature Reserve for their help in the
field work, to X. H. Jin for his critical review of the manu鄄
script, and to D. P. Ye for his help in classification.
References:
Seidenfaden G, 1988. Lesliea [J] . Opera Botanica, 95: 190—191
446摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 植 物 分 类 与 资 源 学 报摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 第 33 卷