FLORA OF WASHINGTON AND VICINITY. 203 



1286. Grimmia Pennsylvanica, SchAvaegr. 



1287. Racomitrium fasciculare, Brid. 



1288. Hed-wigia ciliata, Ehrh, 



1289. Diphyscium foliosum, Web. & Molir. 



1290. Atrichum undulatum, Beauv. 



1291. Atrichum angustatum, Beauv. 



1292. Pogonatum brevicaule, Brid. 



1293. Pogonatum urnigerum, Brid. 



1294. Polytrichum commune, L. 



1295. Polytrichum juniperinum, Hedw. 



1296. Aulacomnium heterostichum, Br. & Sch. 



1297. Bryum pyriforme, Hedw. 



1298. Bryum Wahlenbergii, Schwaegr. 



1299. Bryum argenteum, L. 



1300. Bryum pseudo-triquetrum, Schwaegr. 



1301. Bryum caespiticium, L. 



1302. Mnium stellare, Hedw. 



1303. Mnium Drummondii, Br. & Sch. 



1304. Mnium cuspidatum, Hedw. 



1305. Bartramia pomiformis, Hedw. 



1306. Bartramia fontana, Brid. 



1307. Funaria hygrometrica, Hedw. 



1308. Physcomitrium pyriforme, Br. & Sch. 



