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Clamatis jingxiensis, a new species of Ranunculaceae from Guangxi

靖西铁线莲, 广西毛茛科一新种



全 文 :  Guihaia  Jun. 2016ꎬ 36 (增刊 1): 95-96
http: / / journal.gxzw.gxib.cn
http: / / www.guihaia-journal.com
【原文刊载】 “靖西铁线莲ꎬ 广西毛茛科一新种” 已于 “中国知网 (CNKI)” 单篇优先数字出版ꎬ «广西植物»待刊ꎮ
靖西铁线莲ꎬ 广西毛茛科一新种
王文采
( 中国科学院植物研究所 系统与进化植物学国家重点实验室ꎬ 北京 100093 )
摘  要: 该文描述了自广西发现的毛茛科铁线莲一新种ꎬ靖西铁线莲ꎬ此新种与宝岛铁线莲在亲缘关系上接近ꎬ
与后者的区别在于本种的茎疏被短柔毛ꎬ小叶卵形或狭卵形ꎬ不分裂ꎬ聚伞花序有 1 ~ 3 花ꎬ萼片较大长 1.7 ~
2 cmꎬ宽 0.5~0.7 cmꎮ
关键词: 毛茛科ꎬ 铁线莲属ꎬ 新种ꎬ 广西
中图分类号: Q949    文献标识码: A    文章编号: 1000 ̄3142(2016)增刊 1 ̄0095 ̄02
Clamatis jingxiensisꎬ a new species of
Ranunculaceae from Guangxi
WANG Wen ̄Tsai
( State Key Laboratory of Systematic and Evolutionary Botanyꎬ Institute of Botanyꎬ
Chinese Academy of Sciencesꎬ Beijing 100093ꎬ China )
Abstract: A species of the genus Clematis (Ranunculaceae)ꎬ C. jingxiensisꎬ is described as new from Guangxi Zhuang
Autonomous Region. It is related to C. formosana Kuntzeꎬ and from the latter differs in its sparsely puberulous stemsꎬ
ovate or narrowly ovate and undivided leafletsꎬ 1-3 ̄flowered cymesꎬ and in its larger sepals 1.7-2 cm long and 0.5-0.7
cm broad.
Key words: Ranunculaceaeꎬ Clamatisꎬ new speciesꎬ Guangxi
    靖西铁线莲  图 1
Clematis jingxiensis W. T. Wangꎬ sp. nov.
(Sect. Clematis subsect. Clematis ser. Clematis)
Species nova haec est affinis C. formosanae
Kuntzeꎬ quae caulibus dense puberulisꎬ foliolis
plerumque lanceolatis interdum 2-3 ̄lobatisꎬcymis 3-5 ̄
florisꎬfloribus minoribusꎬ sepalis 0. 8 - 1. 3 cm longis
0.3-0.4 cm latis differt.
Woody vines. Hornotinous branches ca. 1. 5 mm
acrossꎬ sparsely puberulousꎬlongitudinally shallowly 8 ̄
sulcate. Leaves oppositeꎬ ternateꎻ leaflets petiolulateꎬ
thinly coriaceousꎬovate or narrowly ovateꎬ4-7.2 × 2.2-
3.2 cmꎬapex acuminate or long acuminateꎬbase subtrun ̄
cate or subcordateꎬ margin entireꎻ surfaces adaxially
glabrousꎬabaxially on basal nerves sparsely appressed ̄
puberulousꎻ basal nerves abaxially prominentꎻ petio ̄
lules 0.5-2 cm longꎻ petioles ca. 4 cm longꎬ with petio ̄
lules and peduncles sparsely puberulous. Cymes singly
axillaryꎬ ca. 5 cm broadꎬ(1-)3 ̄floweredꎻ peduncle 3-
6.5 cm longꎻ bracts 2ꎬoppositeꎬshortly petiolateꎬ nar ̄
rowly ovateꎬ2-4 × 0.8-1.3 cmꎻ bracteoles linearꎬ 4-5
mm longꎻ pedicels 1.1-2.2 cm longꎬ densely appressed ̄
puberulous. Flower: Sepals 4ꎬ spreadingꎬ oblong ̄ellip ̄
ticꎬ 1.7-2 × 0.5-0.7 cmꎬ adaxially glabrousꎬ abaxially
收稿日期: 2015 ̄07 ̄10     修回日期: 2015 ̄08 ̄09
作者简介: 王文采(1926 ̄)ꎬ男ꎬ研究员ꎬ中国科学院院士ꎬ著名植物分类学家ꎬ长期从事有花植物分类学研究ꎮ
图 1  靖西铁线莲  A. 开花枝一段ꎻ B. 萼片(背面观)ꎻ C. 雄蕊ꎻ D. 心皮ꎮ
Fig. 1  Clematis jingxiensis  A. A part of flowering branchꎻ B. Sepalꎬ abaxial viewꎻ C. Stamenꎻ D. Carpel. (from holotype)
densely puberulous and inconspicuously longitudinally
3 ̄ribbedꎬ apex acute. Stamens numerousꎬ glabrousꎻ fil ̄
aments lanceolate ̄linearꎬ 3-6.5 × 0.6-1 mmꎻ anthers
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69 广  西  植  物                                      36卷