Monographs Details: Pityrogramma chrysophylla (Sw.) Link
Authority: Proctor, George R. 1989. Ferns of Puerto Rico and the Virgin Islands. Mem. New York Bot. Gard. 53: 1-389.

Basionym. Acrostichum chrysophyllum Swartz, J. Bot. (Schrader) 1800(2): 14. 1802; R. Ind. Occ. 3: 1598. 1806.

Type. Swartz (?), from "in submontosis Antillarum" (S). Swartz also cited Plumier, Traite foug. Amer. 33, t. 44, based on a plant presumably from Martinique.

The typical form of this highly variable species has not been found in Puerto Rico or the Virgin Islands. Instead, there occur two varieties, the commoner of these often confused with P. calomelanos. They can be distinguished as follows:

a. Blades 2-pinnate to 2-pinnate-pinnatifid; abaxial powder white

3a. var. gabrielae.

a. Blades 3-pinnate-pinnatifid to nearly 4-pinnate; abaxial powder bright yellow

3b. var. subfiexuosa.