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Cyathea approximata : ウィキペディア英語版 | Cyathea approximata
''Cyathea approximata'' is a species of tree fern endemic to Madagascar. The trunk is erect, spiny and about 2 m tall. Fronds are bipinnate and usually 2 m long. They often form a crown of two whorls of about seven fronds each. Dark brown scales with a paler margin cover the stipe. Sori are round and occur near the fertile pinnule midvein. They are covered by thin, brown indusia, which are cup-like in appearance. ==References==
*Braggins, John E. & Large, Mark F. 2004. ''Tree Ferns''. Timber Press, Inc., p. 96. ISBN 0-88192-630-2 *(The International Plant Names Index: ''Cyathea approximata'' )
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 approximata」の詳細全文を読む
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