A New Variety from Taiwan: Michelia compressa var. lanyuensis (Magnoliaceae)

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Title:	A New Variety from Taiwan: Michelia compressa var. lanyuensis (Magnoliaceae)
Other Titles:	臺灣特產木蘭科新變種植物：蘭嶼烏心石
Authors:	呂勝由鐘詩文潘富俊
Contributors:	景觀系
Keywords:	木蘭科蘭嶼新變種臺灣蘭嶼烏心石
Date:	2000-12
Issue Date:	2010-12-30 10:05:59 (UTC+8)
Abstract:	本文發表臺灣特產之木蘭科新變種植物，蘭嶼烏心石(Michelia compressa var. 1anyuensis)。蘭嶼烏心石零星散布在海平面到海拔500m的蘭嶼島上，它與烏心石(M. compressa var. compressa)相似，但前者的花被片全為白色，後者的花被片則為黃白色，且基部有有紅斑。它也類似臺灣本島產的臺灣烏心石(M. compressa var. formosana)，但前者的葉為厚革質到革質（後者革質到薄革質），葉先端為圓至驟凸（後者驟凸到漸尖），長/寬比通常在2倍左右（後者3-4倍左右），可茲區別。 A new taxon of Michelia, M. compressa var. lanyuensis S.Y. Lu, endemic to Lanyu (Orchid Island) of Taiwan is described and illustrated. It is sporadic from sea Level to 500m elevation in broadleaf forests. It is similar to M. compressa var. compressa of Japan and the Ryukyus, but is distinguishable by perianth color (white vs. yellowish with a pink base). It is also similar to M. compressa var. formosana, but differs in leaf texture (thick-coriaceous to coriaceous vs. coriaceous to thin-coriaceous) and leaf shape (rounded to cuspidate vs. cuspidate to acuminate at apex, and Ca. 2 times as long as broad vs. 3-4 times as long as broad).
Relation:	臺灣林業科學 15卷4期 P.521-524
Appears in Collections:	[Department of Landscape Architecture & Graduate Institute of Landscape Architecture ] journal articles

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