MEXICAN MOSSES COLLECTED BY BROTHER 

 ARSENE BROUARD— III 



Bv I. THERIOT 



FONTAINE LA MALLET, FRANCE 



With the present paper the study of Brother Arsene's mosses comes 

 to an end. In addition to this coUection a rather large number of 

 species collected by Brother Amable in 1926-27 are included. These 

 last are from the Valley of Mexico and adjacent regions. Together 

 the two collections comprise about 300 species, among which 18 had 

 not been found previously in Mexico, and 44 are entirely new. Brother 

 Arsene's and Brother Amable's explorations have thus enriched the 

 bryological flora of Mexico by more than 60 species. These valiant 

 botanists are deserving of great praise and also of thanks from all 

 those w4io are interested in bryology. Referring to the figures given 

 by Cardot ' the Mexican flora now includes, with the Arsene and 

 Amable contributions, about 700 species of mosses. We are therefore 

 well above the 400 species enumerated in the Prodrome of Bescherelle. 



It remains now for me to fulfill the very agreeable duty of ex- 

 pressing my gratitude to Brother Arsene and Edwin B. Bartram, 

 who have assumed with such kindness the task of translating my 

 French text into luiglish, and to the Smithsonian Institution for 

 l)ublishing my studies. 



The two previous parts were published in the Smithsonian Miscel- 

 laneous Collections as follows : Vol. yS, no. 2, pp. 1-29, June 15, 1926 ; 

 vol. 81, no. I, pp. 1-26, August 15, 1928. In the introduction to the 

 first of these there will be found a list of localities in the states of 

 Michoacan and Puebla from which specimens are cited ; this will 

 prove useful also for the present and final contribution. 



DITRICHACEAE (continued) 



DISTICHIUM CAPILLACEUM (Sw.) Bry. Eur. 



Valle de Mexico: Desierto (Bro. Amable 1500). 

 Very probably new to ]\Iexic(j. 



'Rev. Bryol. 38:97. igii; 40:33. nn3. 



Smithsonian Miscellaneous Collections, Vol. 85, No. 4 



