G Hutchinsiae Hook, and Grev. 



7 pumilum Swartz. 



8 strangulatum. B. de P. 



469 Polytrichum L. 



1 commune L. 



2 formosum Hedw. 



3 juniperinum W. 



4 pennsylvanicum Hedw. 



5 undulatum Hedw. 



470 Pterogonium Swartz. Pterigynandrum Hedw. 



1 apiculatum Brid. 



2 hirtcllum Hedw. 



3 julaceum Hedw. 



4 subcapillatum Hedw. 



5 trichomitrion Swartz. 



471 Sphagnum L. 



1 acutifolium Hook, and Tay. capillifolium Hedw f 



2 obtusifolium Hook, cymbifolium Swartz. 



3 sqarrosum Web. and Mohr. 



472 Tetraphis Hedw. 



1 pellucida Hedw. 



473 Timmia Hedw. 



1 cucullata Mx. Williamstown. 



474 Trematodon Rich. 



1 longicollis Ricb. Deerficld. 



475 Trichostomum Hedw. 



1 pallidum Hedw. 



476 Weissia Hedw. . 



1 microdonta. Hedw. 



2 viridula Hedw. 



* 



ORDER III. 



Hepaticae. 



477 Anthoceros L. 



1 levis L. Wax Liverwort. 



478 Blasia L. 

 1 pusilla L. 



