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Cyathea atropurpurea : ウィキペディア英語版 | Cyathea atropurpurea
''Cyathea atropurpurea'' is a species of tree fern native to the islands of Luzon, Mindanao, Leyte and Mindanao in the Philippines, where it grows in forest at above 1000 m. The erect trunk is slender and may be up to 3 m tall. Fronds are bipinnate and 1-2 m long. Characteristically of this species, the final pair of pinnae are usually reduced and occur towards the base of the stipe. These, along with the stipe bases, are persistent and retained around the trunk long after withering. The stipe itself is dark and covered with scales, which are either small, dull and brown or large, dark and glossy. Sori occur near the midvein of fertile pinnules and lack indusia. Fertile pinnules are notably smaller than sterile ones. ''C. atropurpurea'' is very similar to ''Cyathea ramispina'' and may in fact represent the same species. It differs only in its smaller pinnae and pinnules, as well as other frond details. ==References==
*Braggins, John E. & Large, Mark F. 2004. ''Tree Ferns''. Timber Press, Inc., p. 100. ISBN 0-88192-630-2 *(The International Plant Names Index: ''Cyathea atropurpurea'' )
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Cyathea atropurpurea」の詳細全文を読む
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