Monographs Details: Adiantum polyphyllum Willd. var. polyphyllum
Authority: Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.
Description:Distribution and Ecology - Distribution. Colombia and Venezuela. Terrestrial. In the Guayana Highland known only from Plaza Bonita, near the Río Guejar, Sierra de la Macarena, alt 400 m, Philipson et al 1454 (US).


Adiantum cardiochlaena Kunze, Linnaea 17: 568. 1843. Lectotype. Caracas, Venezuela, Linden 78 (B not seen), inferentially chosen by Hooker in citing the other syntype as the type of A. cardiochlaena var ß rigidum.

Adiantum cardiochlaena var f3 rigidum Hook., Sp. Fil. 2: 51. 1851. Type. Caracas, Venezuela, Linden 125 (K? not seen).

Adiantum parallelogrammum Vell., Arch. Mus. Nac. Rio Janeiro 5: 456. 1881. Type. Nhanduaray, Brazil, Velloso (RB? not seen).

Adiantum polyphyllum var rigidum (Hook.) Moore, Ind. Fil. 34. 1858.

Adiantum polyphyllum var toquisense Hieron., Hedwigia 48: 236, t. 11, f. 12. 1909, as “toquisensis.” Type. Colombia, Stübel 698 (B not seen, fragment US).

Type. Caracas, Venezuela, Bredemeyer (B-Hb. Willd. no. 20104-1 not seen Tryon photo US).

Distribution:Colombia South America| Venezuela South America| Guyana South America|