140 FLORA OF WASHINGTON AND VICINITY. 



t Lycopodium dendroideum, Michx. Ground-Pine. 

 Not common. July to October. 



Lycopodium complanatum, L. Crowfoot. 

 September, October. 



Lycopodium complanatum, L., var. sabinEefolium, Spring. 



Two miles nortb of Bladensburg. In young fruit July 20, 1879. 



Selaginella rupestris, Spring. 



Great Falls. Specimens collected by Dr. Schott are in tbe herbarium of the De- 

 partment of Agriculture. Not seen recently. 



Selaginella apus, Spring. 



Foundry Eun (Dr. Vasey); Reform School. July. 



CELLULAE CRYPTOGAMIA. 

 MUSCI. 



Mosses. 



The list of Musci and HejyaticcE -which follows was prepared by the late Mr. Rudolph 

 Oldberg for the Flora Columbiana, published in 1876. It is reproduced here almost 

 wholly unchanged except that the habitat is omitted according to the general plan 

 of this work, and a few changes have been made in the names and authorities as 

 well as in the arrangement, to make it conform strictly to Sullivant's work. 



Sphagnum cymbifolium, Dill. 

 Sphagnum squarrosum, Pers. 

 Sphagnum acutifolium, Ehrh. 

 Sphagnum cuspidatum, Ehrh. 

 Andrsea rupestris, Turner. 

 Phascum sessile, Br. & Sch. 

 Phascum cohaerens, Hedw. 

 Phascum triquetrum, Spruce. 

 Phascum cuspidatum, Schreb. 

 Phascum alternifolium, Brid. 

 Phascum subulatum, Schreb. 

 Phascum Sullivantii, Schimp. 

 Bruchia flexuosa, Schwaegr. 

 Weisia viridula, Brid. 

 Trematodon longicollis, Rich. 

 Dicranum varium, Hedw. 

 Dicranum heteromallum, Hedw. 

 Dicranum scoparium, L. 

 Ceratodon purpureus, Brid. 



