NO. 4 MEXICAN MOSSES THERIOT 33 



HYGROHYPNUM PALUSTRE (Huds.) Loesk. 



Puebla: San Felipe (4504. 4505). 



This species was not known previously from Mexico. 



DREPANOCLADUS EXANNULATUS (Giimb.) Warnst. var. MEXICANUS 

 (Mitt.) Card. Rev. Bryol. 37: 54. 1910 



Puebla: Hacienda Batan (4961). Queretaro : Cienaga de la 

 Caiiada (11002). 



The var. inexicamis seems close to var. pinnatus (Boul.), from 

 which it may be distinguished by its almost entire leaves, with thinner 

 costae. The most conspicuous character of this variety consists in the 

 very marked apical prominence of the cells. It is, perhaps, the first 

 time this peculiarity has been noted in connection with D. exannulatus. 



PLATYHYPNIDIUM SUBRUSCIFORME (C. M.) Fleisch. Laubm. Fl. Jav. 4 : 



1537. 1922 



Hypnuin suhriisciforme C. M. Linnaea 38: 658. 1874. 

 Rhynchostcgium malacocladuiii Card. Rev. Bryol. 37: 71. 1910. 



Puebla: (699); banks of Alseseca (700); Cerro Guadalupe 

 (676): Hacienda Alamos (4626, 4629, 4761). A^allc de Mexico 

 {Bro. Amahlc) : Morales (1597) ; Tenango (1687). 



I have noticed the variability of this species with regard to the 

 form of the acumen and of the capsule, 



PLATYHYPNIDIUM PRINGLEI (Card.) Broth, in E. & P. Nat. Pflanzeniani. 



ed. 2, 11: 347. 1925 



h'hynrhostcf/iinii Priuglci Card. Rev. Br\^ol. 37: 70. 1910. 



Puebla: Hacienda Alamos (4628, 4769 p. p.) ; Hacienda Batan 

 (5006). Morelia: Pare San Pedro (4589) ; Andameo (4822) ; Cam- 

 panario (7534) ; Loma Santa Maria (4908, 4910). 



PLATYHYPNIDIUM OBTUSIFOLIUM (Besch.) Broth, in E. & P. Nat. 



Pflanzenfam. ed. 2, 11: 347. 1925. 

 Rhynchostegiiim obtiisijoUuiu Ecsch. in Card. Rev. Bryol. 37: 71. 1910. 

 Morelia: Cerro San Miguel (4870, 5041, 5071); Campanario 

 (7631); Loma Santa Maria (4890, 4917). Distr. Federal: Tlal- 

 ])am (9492). 



PLATYHYPNIDIUM OBTUSIFOLIUM (Besch.) Broth, var. SUBACUTUM 



Ther., var. nov. 



Leaves suJaacute and contracted at the apex. 



Valle de Mexico: Tlalpam, in water (Bro. Amable 1450, 1452). 



