Resumen

MARQUEZ, Gonzalo J. The family Cyatheaceae (Pteridophyta) in Argentina. Bol. Soc. Argent. Bot. [online]. 2010, vol.45, n.1-2, pp.173-182. ISSN 1851-2372.

The family Cyatheaceae comprises about 500 species of tree ferns. Their distribution is pantropical and in Argentina is represented by four species, grouped in genera Alsophila y Cyathea: A. setosa, A. odonelliana, C. atrovirens and C. delgadii. In this paper, an update of the available information of the mentioned species is presented. A key to diferentiate the species growing in Argentina, their descriptions and a distribution map are also given. Spores are ridged in Alsophila and with rodlets in Cyathea. Indusia and scales of petiole basis are also illustrated.

Palabras clave : Tree ferns; Cyatheaceae; Argentina.

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