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Cyathea callosa : ウィキペディア英語版 | Cyathea callosa
''Cyathea callosa'' is a species of tree fern endemic to Luzon in the Philippines, where it grows in midmontane forest. The trunk is erect and about 3 m tall or more. Fronds are bi- or tripinnate and 1-2 m long. The stipe is spiny and covered with scattered scales that are dark and have pale, fragile edges. Sori occur near the midvein of fertile pinnules and are covered by thin, pale indusia. The closest relative of ''C. callosa'' appears to be ''Cyathea spinulosa''. It differs in having a greater number of spines, which are also longer than those of ''C. callosa''. ==References==
*Braggins, John E. & Large, Mark F. 2004. ''Tree Ferns''. Timber Press, Inc., p. 109. ISBN 0-88192-630-2 *(The International Plant Names Index: ''Cyathea callosa'' )
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 callosa」の詳細全文を読む
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