Abstract

Forty-nine species of Taiwan Pteridaceae were examined for their leaf epidermal features. Some of these features are stable characters without location variation, and are very good in differentiating taxa, especially at generic level. All genera except Cheilanthes were supported by the present study data. Taiwan Cheilanthes may be better divided into four genera. Leaf epidermal features are also provide some clues of systematic relationships among several genera. Coniogramme and Pteris may be more close to each other than previously thought.

中文摘要

以49 種臺灣鳳尾蕨科為材料進行其葉表皮形態之觀察。部分特徵為穩定之形態， 不隨地點不同而有所變化；此些特徵在不同之分類階層上都有其用處，用於探討屬間之區別及關係尤佳。除碎米蕨屬外，其他屬皆有其一定之葉表皮特徵；臺灣之碎米蕨屬最好分為四屬。鳳了蕨屬與鳳尾蕨屬可能有非常接近之關係。

Keyword: Taiwan, Pteridaceae, Leaf epidermal morphology, Scanning electron microscopy