NO. 1 MEXICAN MOSSES THERIOT 7 



of the spores, and, chiefly, by the perichaetium, the external leaves 

 of which are spreading and the internal ones closely clasping the 

 pedicel, all of them very concave, very shortly acuminate or sub- 

 rounded, and acute or subobtuse. 

 A novelty for Mexico. 



FUNARIA ANNULATA Besch. Prodr. Bryol. Mex. 48. 1871 



Puebla: Road to Cholula (713)- 



Brotherus considers this moss very close to F. cdvescens Schwaegr. 

 I do not deny it, but I have not been able to examine enough speci- 

 mens to appreciate the extent of the variations and to form a concrete 

 opinion of its relative position. 



BRYACEAE 

 WEBERA SPECTABILIS (C. M.) Jaeg. 



Bryum spcctabilc C. M. Syn. 2 : 583. 185 1. 

 Morelia. Campanario (4772> 7535)- 



WEBERA CYLINDRICA Schimp. in Besch. Prodr. Bryol. Mex. 52. 1871 

 Morelia: Campanario (7549. 7932, 7952); Loma Santa Maria 

 (5102). 



I consider these two species very close. It would not be difficult, 

 I think, to find some day transitional forms which will throw W. 

 cylindrica into synonymy. Meanwhile I distinguish W. cylindrica by 

 its broader leaves (0.5-0.7 mm., instead of 0.3-0.4 mm.), more fre- 

 quently revolute, with a stronger costa (70-120 /x against 40-60 ix.) . 



WEBERA DIDYMODONTIA (Mitt.) Broth, in Engl. & Prantl, Pflanzenfam. 



ed. 2, i: 362. 1924 

 Bryum didymodontium Mitt. Muse. Austr. Amer. 289. 1869. 



Morelia: Campanario (7547, 7555> 7556, 7640). 



Determination doubtful. In the sterile state it seems to me mipos- 

 sible to distinguish with certainty this species from W. commutata 

 Schimp. Only a single specimen (7556) is in fruit, and the capsules 

 are very young. I recognized the species by the length of the pedicels 

 (up to 4 cm.), and I give the same name to the sterile specimens 

 because they are from the same place and look identical with no. 7556. 



WEBERA ZACATECANA (R. S. Williams) Ther., comb. nov. 



Pohlia sacatecana R. S. Williams, Bryologist 26 : 22,- pl- 4- I923- 

 Morelia: Andameo (4833)- 



