Flowerless Plants. 



Pterogonium. Swartz. Pterigynandrum Hedw. 



apiculalum, Brid. 



hirtellum, Hedw. 



intricatum, B — e. * 



julaceum, Hedw. 



subcapillatum, Hedw. 



trichomitrion, Swartz, B — e. 

 Sphagnum L. 



acutifolium, Hook, and Tay. 



latifolium, B — e. * 



obtusifolium, Hook, cymbifolium, Swartz. 



squarrosum, Web. &L Mohr. 

 Tetraphis Hedw. 



pellucida. Hedw. 

 Timmia Hedw. 



cucullata, Mx. B — e. 

 Trematodon Richard. 



longicollis, Rich. Deerfield. 

 Trichostomum Hedw. 



pallidum, Hedw. B — e. 

 Weissia Hedw. 



controversa. 



microdonta, Hedw. B — e. 

 viridula, Hedw. B — e. 



HEPATIC2E. 



Anthoceros L. 



levis, L. 

 Blasia L. 



pusilla, L. Jungermannia Blasiae. Hook. 

 Jungermannia L. 



complavata, L. Plaited Moss. 



ciliaris L. sertulariordes Mx. 



pinguis, L. 



platyphylla, L. 



porella, Dickson. Ware. Mr. Emerson Davis, 

 scalaris, Schwein. 

 tamarisci, Martens, 

 tomentella, Ehrh. 

 trilobata, Weber, 

 tridenticulata, Mx. 

 Marchantia L. Liverwort. 

 conica, L. B — e. 

 crinita, Mx. 



cruciata? L. Staurophora pukhella, W. 

 polymorpha, L. Brook Liverwort. B — e. 

 triceps, Schw. M. S. 

 Riccia L. 



fluitan s , L Forkstems^ B — e. * 

 natans, L. Floating Liverwort. B — e. 

 lutea, Selus. 



CHARACEAE. 



Chara L. 



flexilis, W. 

 foliosa, W. 



vulgaris, L. Feather Beds, 



