UNDERWOOD: REVIEW OF THE GENERA OF Ferns 271 
sebeera (215) based on Adiantum triphyllum and C. pinnata 
Kaulf.; 10. Balantium (228) based on B. auricomum and Dick- 
sonia Culcita. Besides the above, Onychium (144) must be reck- 
oned from this date since it was not fully established by its author 
in 1820. (O. auratum and O. Capense are here described.) 
1824 
Gaudichaud (Ann. Sci. Nat. 3:) established Pixonia (507) 
based on P. splendens from the Sandwich Islands; Schizoloma 
(507) based on .S. cordatum from the Moluccas and two other 
species, and Adenopherus (508) based on A. tripinnatifida from the 
Sandwich Islands and two other species. 
1824 
Bory (Dict. Class. Hist. Nat. 6—9 :) founded the genera: 
I. Feea (6: 446, 588. 1824) based on F. folypodina and F. 
nana. 
2. Hymenostachys (6: 588. 1824; 8: 462. 1825) based on 77. 
diversifrons. : 
3. Lastrea (6: 588. 1824; 9: 232. 1826) based on Polypo- 
dium Oreopteris, Thelypteris, Fhegopteris, and Dryopteris of Europe 
together with other species. 
4. Selliguea (6: 587. 1824; 15: 344. 1829) based on a Javan 
species described but not named. 
5. Marginaria (Adenophorus Gaud.) (6: 587. 1824; 10: 176. 
1826) based on M. scolopendria, Poly. marginatum Willd., P. in- 
canum and two others. 
1825 
Bory (Ann. Sci. Nat. 5: 464) established Drynaria as a sub- 
genus based on Polypodium quercifolium L. and three other species. 
1825 
Hamilton (in Don : Prod. Fl. Nep.) published : 
1. Neuronia (6) based on Aspidium Wallichii Hook. Exot. Fl. 
pl. 5, changed to N. asplenoides (7). 
2. Peranema (12) founded on P. cyatheoides. 
3. Leptostegia (14) on L. lucida. 
