Cyathea pinnula (Christ) Domin (1930: 148

Lehnert, Marcus, 2011, Species of Cyathea in America related to the western Pacific species C. decurrens, Phytotaxa 26, pp. 39-59 : 52

24. Cyathea pinnula (Christ) Domin (1930: 148 ; Moran 1991: 90). Alsophila pinnula Christ (1901: 43) . Type:— COSTA RICA. Limón: Río La Matina, Pittier 10267 (holotype P n.v., fragment NY, US).

Distribution and habitat: — Costa Rica, Panama, Colombia, in wet tropical forests between 100–1500 m.

Remarks: — Moran (1991) reinstated this species unaware of the earlier combination to the genus Cyathea ( Domin 1930: 148) and treated it as being exindusiate. Close inspection of the type material revealed that most sori have a small indusium that is hidden under the paraphyses and easily overlooked. Out of practicality, it should be treated as both indusiate and exindusiate in the keys because of the small size and irregular occurrence of the indusia.