CALLIPTERIS, Bory, 1804. 
Digrammaria, Hook. (non. Pr.) 1840. 
Anisogonium, Presl. 1836. 
Microstegia, Presl. (pt.) 1849. 
§ 12. HEMIONITIDiE. 
(a) Veins uniform reticulated. 
* Sori continuous. 
t Sori partially reticxdated mually immersed. 
29 ANTPvOPHYUM, Klfs. 1824. 
Solenopteris, Wall, Herb. 1823. 
t t Sori universally reticulated, superficial. 
30 HEMIONITIS, Lin. 1742. 
13. GYMNOGRAMME^. 
(a) Veins free. 
* Sori linear oblong, simple. 
31 GRAMMITIS, Siv. 1800. 
Chilopteris, Presl. 1836. 
Pleurogramma, E,. Br. 1838. 
Leptogramma, J. Sm. 1841. 
Trichothemelium, Kze. 1851, 
Trichocalymma, Zenker, 1851. 
Mecosorus, Kl. (pt.) 1847. 
(6) Veins uniform reticulated, with free included veinlets in the Areoles. 
32 LOXOGRAMMA, (Bl. 1828; Presl. 1836. 
§ 14. PLATYLOMEiE. 
(a) Fertile divisions plane conformable ivith tlie sterite. 
33 PLATYLOMA, J. Sm. 1841 
Pellaea, Link, 1841. | Crypteris, Nutt, MS. Hook. 1857. 
15. POLYPODIE.^. 
(a) Margins of the fronds not indusioid. 
* Veins free. 
t Sori globose, rarely sub-elongated, distinct. 
34 POLYPODIUM, Lin. 1737 (reduct.) 
Psidopodium, Necker, 1790. 
Adenophorus, Gaud. MS. Eory, 1824, Gaud. 
1826. 
Margiaaria, Bory, (pt.) 1824 :1826. 
Gymnocarpium, Newm. 1851. 
Ctenopteris, Newm. 1851. 
Gymnodium, A. Br. 1853. 
Arthropteris, J. Sm. 1854. 
