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Cyathea albomarginata : ウィキペディア英語版 | Cyathea albomarginata
''Cyathea albomarginata'' is a species of tree fern native to Panamá and Costa Rica. It grows in wet forests at elevations of 2400-2800 m, considerably higher than most other tree ferns of Central America. The epithet "''albomarginata''" means "white-margined," referring the coloration of the petiole scales, unique among known species of the genus.〔(Moran, R. C. 1991. Eight new species of tree ferns (''Cyathea'', Cyatheaceae) from the American tropics and three new combinations. Novon 1(2): 88–104. )〕 ''Cyathea albomarginata'' is a small tree with a trunk up to 50 cm tall. Petiole purplish-brown with white margins, scaly but not spiny; scales (= modified appendages attached to the margins of the petioles) bicolored, dark purple in the center but white along the margins; dead scales appearing totally white. Leaves bipinnate; pinnulae 10-12 cm long.〔〔Davidse, G., M. Sousa Sánchez & S. Knapp. 1995. Psilotaceae a Salviniaceae. 1: i–xxi, 1–470. In G. Davidse, M. Sousa Sánchez & A.O. Chater (eds.) Flora Mesoamericana. Universidad Nacional Autónoma de México, México, D. F. 〕〔Correa A., M.D., C. Galdames & M. Stapf. 2004. Catálogo de las Plantas Vasculares de Panamá 1–599. Smithsonian Tropical Research Institute, Panama. 〕〔(photo of holotype of ''Cyathea albomarginata'' at Missouri Botanical Garden )〕 ==References==
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