全 文 ：植 物 分 类 学 报 43(1): 71–72(2005)
Acta Phytotaxonomica Sinica
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2003-09-01收稿, 2004-09-10收修改稿。
贵州卷柏属(卷柏科)一新种——习水卷柏
1苟光前 2王培善
1(贵州大学生物与环境科学学院 贵阳 550025)
2(贵州生物研究所 贵阳 550009)
Selaginella xishuiensis, a new species of Selaginellaceae
from Guizhou, China
1GOU Guang-Qian 2WANG Pei-Shan
1(College of Biological-Environmental Science, Guizhou University, Guiyang 550025, China)
2(Guizhou Institute of Biology, Guiyang 550009, China)
Abstract Selaginella xishuiensis G. Q. Gou & P. S. Wang, a new species of the
Selaginellaceae from Guizhou, China, is described and illustrated. The new species is related
to S. davidii Franch. in habit and size, but differs by having leaves ciliate along margin. It is
also similar to S. prostrata H. S. Kung in habit, but differs by having sporophylls
homomorphic.
Key words Selaginella, Selaginella xishuiensis G. Q. Gou & P. S. Wang, Selaginellaceae,
new species, Guizhou, China.
摘要 描述了贵州卷柏属一新种,即习水卷柏Selaginella xishuiensis G. Q. Gou & P. S. Wang。新种与蔓出
卷柏S. davidii Franch.在体态和大小方面相近,但叶缘具睫状毛而不同;新种在体态上也与地卷柏S.
prostrata H. S. Kung相似,但孢子叶一型而不同。
关键词 卷柏属; 习水卷柏; 卷柏科; 新种; 贵州; 中国
2002年6月下旬,本文第一作者到贵州省习水县自然保护区做蕨类植物调查采集,在该
区的童仙溪(海拔650 m)采到一种卷柏科Selaginellaceae植物。该植物生于小溪边、林缘的
灌草丛中。野外和室内的观察研究发现该植物形体小, 叶缘具睫状毛, 活植株和压制后的
干标本均呈淡绿色,孢子叶一型,小孢子淡黄色等特征不同于迄今已知的卷柏属Selaginella
Beauv.其他种类, 系一新种。现报道如下。
习水卷柏 新种 图 1
Selaginella xishuiensis G. Q. Gou & P. S. Wang, sp. nov. Fig. 1
Species nova affinis S. davidii Franch., sed a qua differt foliis margine ciliatis; habitu
etiam S. prostratae H. S. Kung similis, sed a qua differt sporophyllis homomorphis.
Tota planta ad 10 cm longa. Caules repentes, multiramosi. Folia heteromorpha; foliis
lateralibus ovatis, 1-1.6 mm longis, 0.5-0.8 mm latis, basi leviter asymmetricis cordatis, apice
acuminatis, margine ciliatis; foliis intermediis anguste ovatis, 0.8-1.3 mm longis, 0.3-0.5 mm
latis, basi asymmetricis, cordatis, apice caudatis, margine ciliatis; foliis axillaribus ovatis,
1-1.5 mm longis, 0.4-0.7 mm latis, basi rotundatis vel subcordatis, apice acuminatis, margine
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ciliatis. Strobili in apicibus ramulorum singulatim vel binatim dispositi, 6-10 mm longi;
sporophyllis homomorphis, ovatis, dorso carinatis, basi subcordatis, apice longe acuminatis,
margine ciliatis.

图1 习水卷柏 A, 体态; B, 孢子囊穗; C, 侧叶; D, 中叶; E, 腋叶; F, 孢子叶。(王晓宇根据苟光前
7-10a号标本绘)
Fig. 1. Selaginella xishuiensis G. Q. Gou & P. S. Wang. A, habit; B, strobile; C, lateral leaf; D, median
leaf; E, axillary leaf; F, sporophyll. Drawn by X. Y. Wang from the type gathering G. Q. Gou 7-10a.

China. Guizhou (贵州)： Xishui (习水), Tongxianxi (童仙溪), forest margin, alt. 650 m,
2002-06-26, G. Q. Gou (苟光前) 7-10a (holotype, GACP; isotypes, PE, PYU).
植株长达10 cm。茎匍匐,多回分枝。叶二型;侧叶卵形,长1-1.6 mm,宽0.5-0.8 mm,基
部略不对称,心形,先端渐尖,边缘具睫状毛;中叶狭卵形,长0.8-1.3 mm,宽0.3-0.5 mm,基部
不对称,心形,先端尾尖,边缘具睫状毛;腋叶卵形,长1-1.5 mm,宽0.4-0.7 mm,基部圆或浅心
形,先端渐尖,边缘也具睫状毛。孢子囊穗单生或双生于小枝顶,长6-10 mm;孢子叶一型,卵
形,龙骨状,基部浅心形,先端长渐尖,边缘具睫状毛。
本种与蔓出卷柏S. davidii Franch.在体态和大小方面相近,但叶缘具睫状毛而不同;体
态也与地卷柏S. prostrata H. S. Kung相似,但孢子叶一型而不同。