105 



Notholsena, R. Br. — cont, 



N. rufa, Presl. See ferruginea. 



N. sinuata, Kaulf. Tropical America. 



N. trichomanoides, R. Br. Jamaica, Cuba. 



Odontosoria. See Davallia. 



Oleandra, Cav. 



0. articulata, Cav. Tropical and S. Africa, Mascarene 

 Islands. 



0. nodosa, Presl. West Indies, Tropical America. 



Olfersia. See Acrostichmn. 



Onoclea, L. 



0. germanica, Willd. North temperate zone. 



O. pennsylvanica, Willd. See germanica. 



0. sensibilis, L. Northern Asia, North America. 



Onychium, Kaulf. 



0. japonicum, Kze. Japan, Himalaya. 

 O. lucidum, Spreng. See japonicum. 



Ophioglossum, L. 



0. vulgatum, L. Ubiquitous in cold and temperate 

 regions. Hook. Brit. Ferns, t. 46. 



Osmunda, L. 



0. bipinnata, Hook. Fil. Exot. t. 9. Hong Kong. 



0. cinnamomea, L. North and Central America, West 

 Indies, Northern Asia. Hook. Gard. Ferns, t. 45. 



