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.

Cyathea corcovadensis
Cyathea
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Cyatheales
Family: Cyatheaceae
Genus: Cyathea
Species:
C. corcovadensis
Binomial name
Cyathea corcovadensis
(Raddi) Domin[1]
Synonyms
  • Polypodium corcovadense Raddi
  • Alsophila corcovadensis (Raddi) C. Christensen
  • Polypodium taenitis Roth
  • Alsophila elegans Martius (non Cyathea elegans Heward, quae = Cyathea grevilleana)
  • Alsophila feeana C. Christensen
  • Cyathea feeana (C. Christensen) Domin
  • Trichipteris feeana (C. Christensen) Copeland
  • Cyathea sternbergii Domin (non Cyathea sternbergii Pohl, quae = Cyathea arborea)
  • Alsophila glaziovii Baker (non Alsophila glaziovii Fée, quae = Cyathea glaziovii)
  • Alsophila sternbergii (Sternb.) D.S.Conant

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

References

edit
  1. ^ Hassler, Michael (2004–2021). "Genus Cyathea". World Ferns. Synonymic Checklist and Distribution of Ferns and Lycophytes of the World. Version 12.4. Retrieved 2021-09-24.