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广西蕨类植物新记录属——白桫椤属
引用本文:农东新,,蒋日红,,吴磊,,许为斌,.广西蕨类植物新记录属——白桫椤属[J].广西植物,2012,32(1):12-14.
作者姓名:农东新    蒋日红    吴磊    许为斌  
作者单位:1. 广西壮族自治区广西植物研究所,广西桂林541006;中国科学院广西植物研究所,广西桂林541006;广西师范大学生命科学学院,广西桂林541004
2. 华南农业大学林学院,广州,510642
摘    要:报道了广西蕨类植物一新记录属——白桫椤属。该属植物以茎干直立,乔木状;叶大型,簇生于茎干顶端,叶柄平滑、有疣突或皮刺,基部鳞片的细胞一式;叶背灰白色;叶脉分叉,2~3叉;无囊群盖等为主要特征。目前该属植物在广西首次记录到白桫椤。根据原始文献及广西的标本对该种进行了描述,并提供了墨线图。

关 键 词:白桫椤属  白桫椤  桫椤科  新记录  珍稀植物  广西

Sphaeropteris, a newly recorded genus of tree ferns from Guangxi
NONG Dong-Xin , JIANG Ri-Hong , WU Lei , XU Wei-Bin.Sphaeropteris, a newly recorded genus of tree ferns from Guangxi[J].Guihaia,2012,32(1):12-14.
Authors:NONG Dong-Xin  JIANG Ri-Hong  WU Lei  XU Wei-Bin
Institution:1,3(1.Guangxi Institute of Botany,Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences,Guilin 541006,China;2.College of Life Sciences,Guangxi Normal University,Guilin 541004,China;3.College of Forestry,South China Agricultural University,Guangzhou 510642,China)
Abstract:Sphaeropteris was reported for the first time from Guangxi.The genus was distinguished by its erect,tree-like trunks;fronds large,arranged in a terminal crown;stipes smooth,scaly or spiny,stipes scales cells conform type;veins 2-3 forked;lower surface pale;sori without indusia.There was only one species recorded in Guangxi,namely S.brunoniana(Hook.) R.M.Tryon.According to the original literature and specimens from Guangxi,the characteristics of this species were described and illustrated.
Keywords:Sphaeropteris  S  brunoniana  Cyatheaceae  new record  rare plant  Guangxi
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