CATALOGUE. 



OPHIOGLOSSACEAE 



Botrychium 



1 biternatuin (Lam.) Underw. 



2 boreale (Fries) Milde 



3 Coulteri Underw. 



4 dissectum Spreng. 



5 lanceolatum (S.G.Gmel.) Angst. 



6 Lunaria (L.) Sw. 



7 matricariae (Schrank) Spreng. 



8 neglectum Wood 



(Ji. matricartaefolium A. Br.) 



9 obliquum Mnhl. 



10 intermedium (D. C. Eaton) 



Underw. 

 n occidentale Underw. 



12 pnmicola Coville 



13 silaifolium Presl 



14 simplex E. Hitchcock 



15 tenebrosnm A. A. Eaton 



1 6 Virginianum (L.) Sw. 



[The Asiatic B. ternatum, found- 

 ed upon a specimen from Japan, is 

 omitted, as it does not occur in 

 America.] 



Ophioglossum 



17 Alaskamim E. G. Britton 



1 8 arenarium E. G. Britton 



19 Californicum Prantl 



20 crotalophoroides Walt. 



21 Engelmanni Prantl 



22 pusillum Nutt. 



23 vulgatum I y . 



Clieiroglossa 



24 palmata (L,.) Presl 



( Ophioglossum palmatnm L. ) 



OSMUNDACEAE 

 Osimmda 



25 cinnamomea L,. 



26 Claytoniana L. 



27 regatis L. 



HYMENOPHYLLACEAE 



Trichomaiies 



28 Petersii A. Gray 



29 radicans Sw. 



SCHIZAEACEAE 

 Oriiithopteris 



(Aneimid) 



30 adiantifolia (L.) Bernh. 



31 Mexicana (Klotzsch.) Underw. 



Lygodiuiii 



32 palmatum (Bernh.) Sw. 



Schizaea 



33 pusilla Pursh 



POLYPODIACEAE 



Woodsia 



34 alpina (Bolton) S. F. Gray 



35 glabella R. Br. 



36 Ilvensis (L.) R. Br. 



37 Mexicana Fee 



38 obtusa (Spreng.) Torr. 



39 Oregana D. C. Eaton 



40 scopulina D. C. Eaton 



