Cyathea corcovadensis

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Cyathea corcovadensis
Scientific classification
Kingdom: Plantae Division: Pteridophyta Order: Cyatheales Family: Cyatheaceae Genus: Cyathea Subgenus: Cyathea Section: Alsophila Species: C. corcovadensis
Binomial name
Cyathea corcovadensis (Raddi) Domin, 1929
Synonyms
Polypodium corcovadense Raddi, 1819 Alsophila corcovadensis (Raddi) C. Christensen, 1905 Polypodium taenitis Roth, 1821 Alsophila elegans Martius, 1834 (non Cyathea elegans Heward, 1838; quae = Cyathea grevilleana) Alsophila feeana C. Christensen, 1905 Cyathea feeana (C. Christensen) Domin, 1929 Trichipteris feeana (C. Christensen) Copeland, 1947 Cyathea sternbergii Domin, 1929 (non Cyathea sternbergii Pohl, 1820; quae = Cyathea arborea) Alsophila glaziovii Baker (non Alsophila glaziovii Fée, 1869; quae Cyathea glaziovii) Alsophila sternbergii (Sternb.) D.S.Conant

Cyathea corcovadensis is a species of tree fern native to Paraguay and Serra do Mar in southern Brazil, where it grows in primary and secondary forest, as well as scrub, at an altitude of 250-2100 m. The erect trunk is short, usually about 30-60 cm tall. Fronds are bipinnate and 2.5 m or more in length. The rachis ranges in colour from brown to purplish and is covered with warts and scattered brown scales. Sori occur either between the fertile pinnule midvein and the edge of the lamina or just beside the midvein. They lack indusia. C. corcovadensis is a variable species, especially in terms of pinnule shape and degree of dissection.

The specific epithet corcovadensis refers to Corcovado, the 704 m tall peak in central Rio de Janeiro.

[edit] References

• Braggins, John E. & Large, Mark F. 2004. Tree Ferns. Timber Press, Inc., p. 116. ISBN 0-88192-630-2
• The International Plant Names Index: Cyathea corcovadensis