Cyathea ×calolepis was first collected by Wright in 1856 or 1857 and after 1859 was not found by any other collector until 1981 when it was rediscovered on the Gran Piedra range in the Sierra Maestra. It has since been collected in several places in the Santiago de Cuba province, twice in the Granma and once in the Guantánamo province, all in E Cuba. It has long been assumed to represent the hybrid between C. arborea and another, unknown tree fern species. This assumption is here corroborated, and it is demonstrated that the second parent is the E Cuban endemic C. strigillosa.
References
D. S. Barrington
1978: A revision of the genus Trichipteris.
— Contr. Gray Herb. 208: 3–93. Google Scholar
M. G. Caluff
1988: Los helechos arborescentes de la Gran Piedra. — Memorias. Primer Simposio de Botánica 1: 1–12. — La Habana. Google Scholar
D. S. Conant
1983: A revision of the genus Alsophila (Cyatheaceae) in the Americas. — J. Arnold Arbor. 64: 333–382. Google Scholar
W. R. Maxon
1912: Studies of tropical American ferns 3. — Contr. U.S. Natl. Herb. 16: 25–62. Google Scholar
W. R. Maxon
1914: Studies of tropical American ferns 5. — Contr. U.S. Natl. Herb. 17: 391–425. Google Scholar
W. R. Maxon
1922: Studies of tropical American ferns 7. — Contr. U.S. Natl. Herb. 24: 33–63. Google Scholar
G. R. Proctor
1982: Taxonomic notes on Jamaican ferns IV. — Amer. Fern J. 72: 107–114. Google Scholar
R. Riba
1968: Revisión monográfica del complejo Alsophila swartziana Martius (Cyatheaceae).
— Anales Inst. Biol. Univ. Nac. México, Ser. Bot. 38: 61–100. Google Scholar
R. Riba
1969: The Alsophila swartziana complex (Cyatheaceae). — Rhodora 71: 7–17. Google Scholar
R. M. Tryon
1970: The classification of the Cyatheaceae.
— Contr. Gray Herb. 200: 3–53. Google Scholar
R. M. Tryon
1976: A revision of the genus Cyathea.
— Contr. Gray Herb. 206: 19–98. Google Scholar
