MEXICAN MOSSES COLLECTED BY BROTHER 

 ARSENE BROUARD— II ' 



By I. THERIOT 



FONTAINE LA MALLET, FRANCE 



In the present paper I continue my report upon the important moss 

 collections made by Brother G. Arsene, which the United States Na- 

 tional Museum submitted to me for study. The species here con- 

 sidered belong chiefly to the families Grimmiaceae, Funariaceae, 

 Bryaceae, Orthotrichaceae, Meteoriaceae, Neckeraceae, Leskeaceae, 

 and Thuidiaceae. In a third paper, in preparation, I shall review the 

 Pottiaceae, Amblystegiaceae, Brachytheciaceae, and Hypnaceae. 



Through the good offices of Brother Arsene, I have entered into 

 correspondence with a new and zealous collector of Mexican- mosses, 

 Brother Amable (F. S. C), a teacher in Mexico City. Last year I 

 received from him an important collection from the " Valley of 

 Mexico," a classic locality often cited in the Prodrormis of Bescherelle. 

 The plants were gathered in localities whose altitudes vary from 2,100 

 to 3,400 meters. Brother Amable's mosses will be included in the 

 present paper and in the following one. To distinguish them from 

 those of Brother Arsene's collection they are accompanied by Brother 

 Amable's name. 



About two years have elapsed since the completion of the first paper, 

 and meantime Mr. V. F. Brotherus has pubHshed the second edition of 

 his Genera. Important modifications have taken place in the families 

 and the genera, and in the known distribution of the species. The 

 reader is advised that the present work follows the plan of the second 

 edition, while the preceding paper was written in conformity with 

 the first edition. 



^ Part I was published as Vol. 78, No. 2, Smithsonian Miscellaneous Collec- 

 tions, June 15, 1926, and to this the reader is referred for a list of special 

 collecting localities with altitudes. The comments and critical notes of the 

 present instalment have been translated from the French by Brother Arsene. 



Smithsonian Miscellaneous Collections, Vol. 81, No. 1 



