Nephrodium villarii subsp. rigidum (Sw.) Hayek in Repert. Spec. Nov. Regni Veg. Beih. 30(1): 26. 1924
Nephrodium villarii subsp. rigidum in Repert. Spec. Nov. Regni Veg. Beih. 30(1): 26. 1924
is new combination for Aspidium rigidum in J. Bot. (Schrader) 1800(2): 37. 1801
Nephrodium villarii subsp. rigidum in Repert. Spec. Nov. Regni Veg. Beih. 30(1): 26. 1924