Diplazium Swartz Diplazium Diplazium, (Cav.) Jermy

2. Diplazium Swartz View in CoL 1

Rhizomes creeping, sparsely covered with ovate, dark brown scales. Leaves erect, distant, usually bipinnate, with pinnules deeply pinnatisect, glabrous above; lamina deflate or ovate-lanceolate; veins free. Sori oblong or linear; indusium oblong or linear, fimbriate at margin, attached laterally along the vein.

Pinnules acuminate, glabrous beneath 1. axillare Pinnules rounded at apex; main veins hairy beneath 2. sibiricum

1. D. caudatum (Cav.) Jermy View in CoL , Brit. Fern Gaz. 9: 161 (1964)

( Tectaria caudata Cav. ) Leaves 70-100 cm; petiole glabrous, shorter than the lamina; lamina 25-50 cm wide, ovate or ovate-lanceolate; pinnae lanceolate, acuminate or caudate; pinnules lanceolate, acute, basal pairs not markedly shorter than the upper; segments serrate-dentate, glabrous beneath. Sori oblong. Woods and shady places. Açores. Az. (Madeira, Canarias.)

D. allorgei Tardieu-Blot , Not. Syst. (Paris) 7: 150 (1938), described from San Miguel, Açores, is like 1 but the petiole is dark and hispid, and the pinnules crenate-serrate, obtuse or truncate at apex. It is possible that this plant has been introduced from South America.