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
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
3a. var. gabrielae.
a. Blades 3-pinnate-pinnatifid to nearly 4-pinnate;
abaxial powder bright yellow
3b. var. subfiexuosa.