SYNOPSIS OF THE FLORA OF COLORADO. 157 



GRIMMIA PLAGIOPODTA, Hedw. 



Hab. On rocks ; in the mountains. Hall. 



GRIMMIA TRICHOPHYLLA, Grew. 



Hab. Shaded rocks, in low mountains. Hall. 

 \ GRIMMIA OVATA, Web. and Mohr. 



Hab. On rocks, mountain region. Hall. 



GRIMMIA OYATA, var. ,5. AFFINIS, Bryol. Eur. 



Hab. Same localities as the former. Hall; (also Explor. 1873.) 



GRIMMIA LEUCOPH^EA, Grev. 



Hab. On flat sand rocks, from the plains to the mountains, (Explor. 

 of' 1873,) ; also abounds at Point of Kocks, Wyoming. Lesquereux. 



GRIMMIA CALYPTRATA, Hook. 



Hab. Dry rocks in low mountains. Hall. 



This moss on the eastern side of the Rocky Mountains is rarely as well 

 developed as in California, and the Sierra Nevada Mountains. The pul- 

 vini are low and the stems slender. 



KACOMITRIUM HETEROSTICHUM, Brid. 



Hab. Humected rocks in the mountains. Found in poor specimens 

 by Hall ; (also in Explor. of 1873.) 



HEDWHHA CILIATA, Ehrh. 



Hab. On rocks, near the base of the mountains ; not rare. 



ZYGODOX LAPPOXICUS, Bryol. Europ. 



Hab. Near Sand Lake ?, iu poor specimens ; (Explor. 1873.) 



ORTHOTRICHUM HUTSCHINSLE, Smith. 



Hab.rOn rocks, borders of creeks, base of the mountains ; common. 

 jf ORTHOTRICHUM ANOMALUM, Hedw. 



Hab. Same stations as the former ; more rarely found. Hall. 



ORTHOTRICHUM HALLII, hulry. & Lesqx., in tiulliv. Icones, Supple- 

 ment, PL 45. 



Orthotrico strangulate affine ; differt foliis superne valde utra facie 

 papillosis; capsula sicca cylindrical, sub ore hand vel vix coiistricta; ca- 

 lyptra lata capsulam totam tegente, etc. 



Hab. On rocks in the mountains. Hall. 



ORTHOTRICHUM UTAHENSB, Sulliv. Mss. 



Priori affine sed robustior; foliis latioribus valde ])apillosis; capsnLe 

 stomatibus immersis. The specimens (too old) have not any capsule with 

 the peristome. 



Hab. Ogden Canon, on shaded perpendicular rocks. Lesquereux. 



ORTHOTRICHUM SPECIOSUM, var. Xees. 



A nne variety with slender steins and male plants entirely covered 

 with thick male buds. The habitat is as remarkable as the form of the 

 plants, it being, as indicated by Hall, upon rocks on low mountains, while 

 in the plains the species is only found upon trees. 



ENCALYPTA COMMUTATA, Xees & Hornsch. 



Hab. High cliffs, near Twin Lakes. Doicnie. 

 v- ENCALYPTA YULGABIS, Hedw. 



J/&. Slopes and fissures of rocks ; low mountains ; common. 



EXCALYPTA STREPTOCARPA, Hedw. Sterile. 



Hab. Glen Eyrie. Porter. 



ENCALYPTA RHABDOCARPA, Schwsegr. 



Hab. Same locality as the former ; less frequent. 



ENCALYPTA RHABDOCARPA, var. ? 



Foliis piliferis, areolatione compacta, papilloso-rugosa ; capsula sub- 



