and its male flowers have not been found. The peristome is that of Desmatodon 

 and not at all as in Tortula; its basilar tube short, of only three horizontally 

 lengthened cells." 



Didymodon rigidulus Hedw. On ledges near trestle above Tolland. Det. 

 Holzinger. 



D. ruhellus (Hofifm.) B. & S. Near Corona Lake, Alt. 11,500 ft. Det. 

 Holzinger. Also by Miss Leonard but no data given. 



Tortella tortuosa (L.) Limpr. James Peak. Miss Leonard. 



Tortula canescens (Br.) Mont. Shores of Corona Lake. Alt. 11,000 ft. 

 Det. Holzinger. 



According to Dixon this species is much like T. muralis in all its vegetative 

 parts, but much smaller. The only certain distinction is the long tubular basal 

 membrane forming a tesselated tube almost half the length of the peristome. 

 New to N. America. 



Tortula latifolia Bruch. Outlet of Corona Lake, Alt. 11,000 ft. Capsules 

 very short for the genus, either immature or old and without peristome. Gem- 

 mae present. 



T. mucronifolia Schwaegr. On soil near Tolland. Overholt. 



T. ruralis (L.) Ehrh. Common in rather dry places. Occurring at Corona 



also. 



T. subulata (L.) Hedw. Upper end of Boulder Park, Mr. C. J. Young. 

 T. subulata var. subinermis Schimp. Dry rocks near Tolland. 

 Trichostomum cylidricum (Bruch.) C. M. In crevices of rock near Tolland, 

 with Encalypta. .Determination doubtful. 



Encalyptaceae 



Encalypta vulgaris var. obtusifolia Funck. Crevices of rock. Frequent, 

 but sparse. Leaves like those of E. streptocarpa, but smaller, as is the whole 

 plant. 



Orthotrichaceae 



Amphidium lapponicum (Hedw.) Schimp. Near trestle above Tolland. 

 Miss Leonard. On rocks near Tolland. 



Orthotrichum alpestre Hornsch. On rocks near Rollinsville. Det. Holzinger. 

 O. Hallii S. & L. Ledges by road to Rollinsville. 



O. Lyelii Hook. & Taylor. On rocks near trestle above Tolland. Det. 

 Holzinger. 



O. Schimperi Hamm. Ledges by road to Rollinsville. 



O. Schlotthaueri Vent. South peak of Arapahoe. Miss Leonard. Det. R. 

 S. Williams. 



O. Shawii Wats. Ledges by road to Rollinsville and near trestle above 

 Tolland. 



O. speciosum Nees. Two localities near Tolland. Prof. Holzinger has a 

 suspicion that this may be 0. Kingianum but says the material is not in shape to 

 decide. 



