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Plant Diversity ›› 1980, Vol. 2 ›› Issue (01): 1-3.

• 研究论文 •    

四川石松属一新种

孔宪需   

  1. 中国科学院成都生物研究所
  • 出版日期:1980-02-25 发布日期:1980-02-25

A NEW SPECIES OF LYCOPODIUM L.FROM SICHUAN

Kung Hsian-shiu   

  1. Chengdu Institute of Botany,Academia sinica
  • Online:1980-02-25 Published:1980-02-25

摘要: 茎直立,高18厘米,多回二叉分枝,基部直径3毫米。叶螺旋状排列,约6行,反折向下,近革质,狭椭圆形或倒披针形,长7—9毫米,宽1.5-2毫米,先端渐尖,基部变狭,上部有稀疏尖齿;中脉两面略突出。孢子囊失在新枝的叶腋,肾形,黄色,长1毫米,宽1.5毫米。四川:雷波,孔宪需5552,林下苔藓丛中,海拔2800米(模式,四川林科所)。此新种近锡金石松,但叶为狭椭圆形或倒披针形,上部边缘有齿而不同。与蛇足石松的区别是叶为近革质,中脉不甚明显。

关键词: 四川, 石松属

Abstract: Species L. herteriano Kumm. similis, sed differt foliis angusto-ellipticis vel oblanceolatis, superne dentatis. A L. serrato Th1lnb. foliis subcoriaceis, costis utrinque leyiter visibilibus differt.Caules erecti, circ. 18 cm. alti, multidichotomi, basi 3 min. diametro. Folia spiraliter disposita 6-fariam, reflexa, subcoriacea, angusto-elliptica vel oblanceolata,7-9 mm. longa et 1.5-2 mm. lata, apice acuminata versus basin angustata, superne remote dentatal costis utrinque paullo prominentibus. Sporangia in ramulis juvenalibus, axillaria, reniformia, luteola, 1 mm. longa et l.5 mm. lata.

Key words: New Species, Lycopodium