Integrative Biology Journals

Plant Diversity ›› 1982, Vol. 4 ›› Issue (04): 1-3.

• Articles •    

NEW FERNS FROM SICHUAN, CHINA

Kung Hsianshiu   

  1. Chengdu Institute of Botany,Academia sinica
  • Online:1982-08-25 Published:1982-08-25

四川蕨类植物新种

孔宪需   

  1. 中国科学院成都生物研究所

Abstract: Species e grege P.creticae L., a qua specie differt magis minore; pinnis 1-3-jugis, brevioribus, infimis simplicibus aut furcatis, 10 cm longis, marginibus densissime spinoso-serrulatis.Tota planta 15-20 cm alta. Rhizomate breviter repente, paleis brunneis lanceolatis onusto. Frondibus fere subdimorphis, approximatis, stipite frondis 5-10 cm longo, straineo, laevi, glabro, supra sulcato; lamina sterili late ovata vel oblonga, 12-14 cm longa, 5-8 cm lata, imparipinnata; pinnis lateralibus 1-3-jugis,oppositis, subsessilibus, obliquis, 1-2 cm inter se remotis.

Key words: new ferns, sichuan, China

摘要: 植株高15—20厘米。根茎短而横行,被棕色披针形鳞片。叶亚二型,密生,叶柄长5—10厘米,禾秆色,光滑,腹面有纵沟;不育叶片宽卵形或矩圆形,长12—14厘米,宽5—8厘米,奇数一回羽状;侧生羽片1—3对,对生,近无柄,斜向上,相距1一2厘米,披针形,长5—9厘米,宽4—8毫米,基部楔形,先端渐尖,边缘有软骨质的刺状齿,基部一对不分叉或二叉;顶生羽片与侧生者同形,基部楔形,无柄;能有叶片与不育者相似,侧生羽片1—3对,长8—10厘米,宽5—6毫米。叶片纸质,干后淡绿色,无毛;叶轴禾秆色;主脉两面突出,禾秆色,侧脉二叉或单一,伸入齿内。抱子囊群线形,生在羽片边缘;囊群盖灰黄色,膜质,全缘。

关键词: 蕨类, 新种