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Onoclea, L. 
0. germanica, Willd. Europe and North America. 
0. pennsijlvanica^ Willd. See gernianlca. 
0. sensibilis, L, North America. 
Onychium, Kaidf, 
0. axiratum, Kaulf. Himalaya. 
0. japonicum, Kze, J apan and Himalaya. 
Var. mnltisoctum, Renders. 
0. Imidum^ Spr. See japonicum. 
Ophioglossum, L, 
0. pendulum, Z. Tropics, Old World. 
0. vulgatum, X. Ubiquitous. 
Osmuuda, X. 
0. cinnamomea, Z. North America, &c. 
0. claytoniana, L, North America, &c. 
0. interrupta^ Mich. See claytoniana. 
0» japonica^ Thimb. See regalis. 
0. javanica, BL Java, &e. 
0. regalis, L. North and South temp, regions. 
Var. corymibifera, Hort. 
Var. cristata, Hort. 
Var. japonica (TA^m6). Japan, &c. 
Var. palustris, Hort. 
Var. purpurascens, Hoi^t. 
0, spectahilis, Willd. See regalis. 
Paragramma. See Polypodium. 
Pellsea, Link. 
P. adiantifolia, Hort. See hastata. 
