| Cyatheaceae | |
Sphaeropteris albifrons
| (Vieill. ex E. Fourn.) R.M. Tryon | Contr. Gray Herb. 200: 24 | 1970 |
| Cyatheaceae | |
Sphaeropteris albosetacea
| R.M. Tryon | Contr. Gray Herb. 200: 21 | 1970 |
| Cyatheaceae | |
Sphaeropteris atahuallpa
| R.M. Tryon | Rhodora 74: 442 | 1972 |
| Cyatheaceae | |
Sphaeropteris aterrima
| (Hook.) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | |
Sphaeropteris bradei
| P.G. Windisch | Bradea 1: 372 | 1973 |
| Cyatheaceae | |
Sphaeropteris brunei
| (Christ) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | ! |
Sphaeropteris brunoniana
| (Wall. ex Hook.) R.M. Tryon | Contr. Gray Herb. 200: 21 | 1970 |
| Cyatheaceae | |
Sphaeropteris cooperi
| (F. Muell.) R.M. Tryon | Contr. Gray Herb. 200: 24 | 1970 |
| Cyatheaceae | |
Sphaeropteris crinita
| R.M. Tryon | Contr. Gray Herb. 200: 21 | 1970 |
| Cyatheaceae | |
Sphaeropteris cuatrecasasii
| R.M. Tryon | Rhodora 73: 14 | 1971 |
| Cyatheaceae | |
Sphaeropteris cyatheoides
| (Desv.) P.G. Windisch | Bradea 1: 372 | 1973 |
| Cyatheaceae | |
Sphaeropteris dissimilis
| (C.V. Morton) P.G. Windisch | Bradea 1(37): 372 | 1973 |
| Cyatheaceae | |
Sphaeropteris elongata
| (Hook.) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | |
Sphaeropteris feani
| (E.Brown) R.M. Tryon | Contr. Gray Herb. 200: 24 | 1970 |
| Cyatheaceae | |
Sphaeropteris gardneri
| (Hook.) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | |
Sphaeropteris gibbosa
| (Klotzsch) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | |
Sphaeropteris glauca
| (Blume) R.M. Tryon | Contr. Gray Herb. 200: 21 | 1970 |
| Cyatheaceae | |
Sphaeropteris guangxiensis
| Y.F. Gu & Y.H. Yan | Phytotaxa 518(1): 69-71, f. 1, 2, 3B, E | 2021 |
| Cyatheaceae | |
Sphaeropteris hainanensis
| (Ching in Ching & C. H. Wang) R.M. Tryon | Contr. Gray Herb. 200: 21 | 1970 |
| Cyatheaceae | |
Sphaeropteris hirsuta
| (Desv.) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | |
Sphaeropteris horrida
| (Liebm.) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | |
Sphaeropteris insignis
| (D.C. Eaton) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | |
Sphaeropteris intermedia
| (Mett.) R.M. Tryon | Contr. Gray Herb. 200: 24 | 1970 |
| Cyatheaceae | |
Sphaeropteris intramarginalis
| P.G. Windisch | Bradea 1: 373, pl. I | 1973 |
| Cyatheaceae | ! |
Sphaeropteris lepifera
| (J. Sm. ex Hook.) R.M. Tryon | Contr. Gray Herb. 200: 21 | 1970 |
| Cyatheaceae | |
Sphaeropteris lockwoodiana
| P.G. Windisch | Bradea 2: 57 | 1976 |
| Cyatheaceae | |
Sphaeropteris lunulata
| (G. Forst.) R.M. Tryon | Contr. Gray Herb. 200: 22 | 1970 |
| Cyatheaceae | |
Sphaeropteris macarenensis
| (Alston) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | |
Sphaeropteris macrocarpa
| (C. Presl) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | |
Sphaeropteris macrosora
| (Baker ex Thurn) P.G. Windisch | Bradea 1: 372 | 1973 |
| Cyatheaceae | |
Sphaeropteris marginalis
| (Klotzsch) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | |
Sphaeropteris medullaris
| (G. Forst.) Bernh. | J. Bot. (Schrader) 1800(2): 122 | 1801 |
| Cyatheaceae | |
Sphaeropteris mollicula
| (Maxon) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | |
Sphaeropteris myosuroides
| (Liebm.) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | |
Sphaeropteris nicobarica
| R.D. Dixit | Indian Fern J. 25(2-Jan): 42 | 1998 |
| Cyatheaceae | |
Sphaeropteris novaecaledoniae
| (Mett.) R.M. Tryon | | ** |
| Cyatheaceae | |
Sphaeropteris parianensis
| P.G. Windisch | Bradea 2: 58, f. 5, 8 | 1976 |
| Cyatheaceae | |
Sphaeropteris pukuana
| (M. Kato) Lehnert & Coritico | Blumea 62: 93 | 2017 |
| Cyatheaceae | |
Sphaeropteris quindiuensis
| (H. Karst.) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | |
Sphaeropteris robinsonii
| Copel. & R.M. Tryon | Contr. Gray Herb. 200: 23 | 1970 |
| Cyatheaceae | |
Sphaeropteris rufescens
| (Mett. ex Kuhn) P.G. Windisch | Bradea 1: 372 | 1973 |
| Cyatheaceae | |
Sphaeropteris senilis
| (Klotzsch) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |
| Cyatheaceae | |
Sphaeropteris sibuyanensis
| (Copel.) R.M. Tryon | Contr. Gray Herb. 200: 23 | 1970 |
| Cyatheaceae | |
Sphaeropteris sipapoensis
| R.M. Tryon | Rhodora 74: 441, f. 1–4 | 1972 |
| Cyatheaceae | |
Sphaeropteris stigmosa
| (Desv.) R.M. Tryon | Contr. Gray Herb. 200: 20 | 1970 |