Williams: Mosses from tropical America "jT 1 



Bryum sp. 



Cuesta de Yocota, i 500-1900 meters, December, 1905(776"). 

 A small amount of some Riil'i yiiui, scarcely sufficient for deter- 

 mination. 

 Rhizogonium spiniforme (L). Bruch. 



Around San Andres de la Sierra, i lOO-i 300 meters, June, 1906 

 {206S). 

 Polytrichadelphus ciliatus (Hook. f. & Wils.) Mitt. 



Las Escaleretas, Moras Valley, 2500-3000 meters, I'ebruary, 

 1906 {1377)- 

 Pogonatum tortile (Sw.) Beau v. 



Around San Andres de la Sierra, i 100-1300 meters, June, 

 1906 {2073). 

 HooKERiopsis gracilis (Mitt.) Jaeg. 



Around San Andres de la Sierra, 1 100-1300 meters, June, 

 1906 [2067). The roughness of the seta of this species is often 

 so slight just under the capsule as to be scarcely noticeable ; the 

 calyptra is not very rough above, and the double-pointed teeth of 

 the leaf-margin are usually quite small. 

 PSematophyllum subsimplex (Hedw.) Mitt. 



Around San Andres de la Sierra, 1100-1300 meters, June, 

 1906 [2066). But a very small amount of this specimen seen and 

 possibly to be referred elsewhere. 

 Microthamnium reptans (Ssv.) Mitt. 



Around San Andres de la Sierra, 11 00- 1300 meters, June, 

 1906 {207 1). 

 Microthamnium Turckheimi C. M. 



Paramo de Buena Vista, 3000-3600 meters, January, 1906 

 {1190). 

 Rhynchostegium conchophyllum (Tayl.) Jaeg. 



Headwaters of Rio Lopez, Rio Palo basin, 2500-3000 meters, 

 January, 1906 {10S7). 



GUATEMALAN MOSSES COLLECTED BY H, PITTIER 

 Tim.mieli.a subanomala (Besch.) Broth. 



Volcan de Agua, 1800-3400 meters, March, 1905 (9). 



