lO SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 8l 



Judging by the exsiccatae I possess (Bryoth. Levier, leg. Miinch; 

 Pringle 15078), this species is very variable. The leaves of the inno- 

 vations are more or less elongate and somewhat narrow-acute ; the 

 perichaetial leaves are more or less revolute, widened or not at the 

 base ; the capsule is oblong, but in Brother Arsene's specimens it is 

 more often claviform. 



BRACHYMENIUM CHLOROCARPUM Card. Rev. Bryol. 36: in. 1909 



This possesses a special habit, which, once seen, renders easy its 

 recognition. Its affinities are with B. imbricatum and B. Munchii. It 

 is distinguished from both species by the costa, which is excurrent in 

 the leaves of the innovations and generally evanescent in the peri- 

 chaetial ones ; also " by the soft, pale, inclined or hanging capsule and 

 by the strongly flexuous pedicel " (teste Cardot). 



Puebla: (4624). Morelia: Andameo (4831). 



BRACHYMENIUM LOZANOI Card. Rev. Bryol. 38: 5. 191 1 



Morelia: Cerro Azul (4558, 4560). 



Near B. systylinm (C. M.) Jaeg. by the size and the form of the 

 leaves; but in B. systylinm the entire or subentire leaves are difficult 

 to moisten. 



BRACHYMENIUM NIVEUM Besch. Journ. de Bot. 15: 383. 1901 

 Morelia: Andameo (4834). 



BRACHYMENIUM CONDENSATUM R. S. Williams, Bryologist 

 26: 2. 1923 



Morelia: Cerro San Miguel (5065). 



Very close to the preceding species. I distinguish it hy its leaves, 

 with a wider margin toward the apex, a costa vanishing more often 

 below the apex, and a shorter and less flexuous hyaline hair point. 

 In B. niveuni the hair point is very long and flexuous, giving the 

 tufts the facies of some Argyrohrynm, like B. arachnoidemn for 

 instance. 



BRACHYMENIUM MEXICANUM Mont. Ann. Sci. Nat. II. Bot. 9: 54. 1838 



Morelia: (7905) ; Cerro San Miguel (4871, 4874, 5061). 



The leaves are exactly entire. That condition agrees well with 

 Montague's original description, " foliis integerrimis," and with C. 

 Muller's. Mitten saw them difl:'erently : " Margine superne minute 

 serrulata ; " it was probably an exceptional case. 



