中国蕨类植物在线

中国蕨类植物网络分类研究平台

Cyatheaceae Sphaeropteris 桫椤科白桫椤属分种检索表

1.叶轴及羽轴光滑;主脉下面通常光滑或有时略被黄白色毛………………………………………
    ………………………………………………………1.白桫椤  S. brunoniana (Hook.) R. M. Tryon
1.叶轴及羽轴密被疣突;主脉下面被卵状平展的鳞片和粗而开展的灰白色粗长毛……
    ……………………………………………2.笔筒树  S. lepifera (Hook.) R. M. Tryon

Taxonomic name: 
星期四, 2013-12-26 14:04 -- liyi
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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith