Sphaerostephanos spenceri
Sphaerostephanos spenceri in Kalikasan 4: 58. 1975
- ≡Dryopteris spenceri in Philip. J. Sci. 2: Bot. 206. 1907
- ≡Phegopteris spenceri, Handb.: 508. 1908
- ≡Cyclosorus spenceri, Gen. Fil.: 143. 1947
- ≡Thelypteris spenceri in Phytologia 17: 314. 1968
- Unknown type category: Mindanao, Davao Distr., Todaya, Copeland 1464
- Unknown type category: Mindanao, Davao Distr., Todaya, Copeland 1464
- Unknown type category: Mindanao, Davao Distr., Todaya, Copeland 1464 (US)