NO. I -MEXICAN MOSSES THERIOT I7 



CRYPHAEA PATENS Hornsch. var. DECURRENS (C. M.) Schimp. & Par. 



Veracruz: Jalapa (8002). Puebla : Esperanza (7921,7975). 



According to my observations this variety differs from the type by 

 the form of the leaves, which are gradually and insensibly narrowed, 

 by their direction when moist (less spreading than in C. patens), 

 and by the perichaetial leaves, which are enervate or nearly so. 



CRYPHAEA SARTORII Schimp. in Besch. Prodr. Bryol. Mex. 72. 1871 



Puebla: Xuchitl, alt. 2,800 m. (7980). 



Cardot (Rev. I'ryol. 38: 102. 191 1) thinks it is convenient to re- 

 unite this species with C. patens. I willingly adhere to his opinion, 

 because the habit, the less dentate acumen, and the less incrassate areo- 

 lation do not seem to be characters sufficiently important for the 

 separation of C. Sartorii. 



DENDROPOGONELLA RUFESCENS (Schimp.) E. G. Britton, Bryologist 



9: 39. 1906 



Puebla: Xuchitl (7968) ; E.speranza (7955). 



LEUCODONTACEAE (Continuation) 

 LEUCODON CRYPTOTHECA Hampe, Linnaea 12: 350. 1838 

 \'alle de Mexico: Desierto {Bro. Amahlc 1283, 1306). 



PTEROBRYACEAE 

 RENAULDIA COCHLEARIFOLIA (Hornsch.) Broth. 

 MoreHa: Cerro Azul (4559a). 



PTEROBRYOPSIS MEXICANA (Schimp.) Fleisch. Hedwigia 45: 60. 1905 



Morelia : Campanario (7460) ; Cerro Azul (4501, 4503, 4977, 4982, 

 7(356) ; Cerro San Miguel (5080, 5086) ; Carindapaz (7956) ; Cas- 

 cade de Coincho (4716). 



Considering these specimens in the aggregate, I have observed some 

 variability in the compression of the branches, the form of the leaf, the 

 length of the cells and the thickening of their walls, the density of the 

 chlorophyll, etc. Some of them would thus seem to show a tendency 

 toward P. Pringlci Card., a species I do not know. 



