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榧属(红豆杉科)一新种——四川榧
引用本文:易同培,杨林,隆廷伦.榧属(红豆杉科)一新种——四川榧[J].植物研究,2006,26(5):513-515.
作者姓名:易同培  杨林  隆廷伦
作者单位:1. 四川农业大学都江堰分校,都江堰,611830
2. 四川省野生动物资源调查保护管理站,成都,610081
摘    要:本新种在种子形态上与云南榧Torreya yunnanensis Cheng et L.K. Fu 相似,不同在于体态为小乔木,高4~5 m,直径10~15 cm;叶较小,长(1.2)1.5~2 cm,宽2.2~3 mm,先端具短尖头,基部圆形或圆楔形,上面仅下部有2条不明显的纵槽,下面2条灰白色气孔带较宽,其宽度与中脉和绿色边带近相等;带假种皮种子倒卵球形或稀近圆球形,较小,直径1.6~2 cm(云南榧2~2.5 cm),易于区别。

关 键 词:榧属  四川榧  新种  四川  中国
收稿时间:2006-02-22
修稿时间:2006年2月22日

Torreya parvifolia,a new species of the Taxaceae from Sichuan,China
YI Tong-Pei,YANG Lin,LONG Ting-Lun.Torreya parvifolia,a new species of the Taxaceae from Sichuan,China[J].Bulletin of Botanical Research,2006,26(5):513-515.
Authors:YI Tong-Pei  YANG Lin  LONG Ting-Lun
Institution:1. Dujiangyan Campus,Sichuan Agricultural University,Dujiangyan 611830;2. Sichuan Province Wildlife Resource Survey and Conservation Station,Chengdu 610081
Abstract:Torreya parvifolia Yi, L. Yang et Long, a new species of the Taxaceae from Sichuan, China, is described and illustracted. The new species is closely related to Torreya yunnanensis Cheng et L. K. Fu, from which it differs apparently by the shorter and smaller stem, 4~5 m high, 10~15 cm diameter; smaller leaves, (1.2)1.5~2 cm long, 2.2~3 mm broad, acute on the apex with short acumen, rotund or rotundly cuneate at the base, upper surface only below with inconspicuous 2-canaliculates, under surface with 2 stomatic bands broader grey white, nearly as width as mitrib and green side; seeds with arillate obovoid or rare nearly globose, smaller, 1.5~2 cm diameter.
Keywords:Torreya Arn    T  parvifolia Yi  L  Yang et Long  new species  Sichuan  China
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