214 BRYACE^. [Paludella. 



late. Peristome as in Webera, the outer teeth as long as the 

 carinate linear segments ; cilia none. Annulus double. 



1. P. squarrosa, Brid. Characters of the genus. — Muse. 

 Recent. Suppl. iii. 72 ; Bryol. Eur. t. 312. Bryuni squarrosiim, 

 Hedw. Spec. Muse. 186, t. 44. 



Hab. Bogs in the Rocky Mountains (Brummond) ; Herkimer County, 

 New York {Rau). A very rare and beautiful moss. 



Tribe XIII. BRYE^. 



Plants varying in size. Stems simple, branching by innova- 

 tions, more or less radiculose. Leaves costate, often dentate ; 

 areolation nearly uniform, parenchymatose in the whole lamina 

 or prosenchymatose toward the apex, generally smooth. Male 

 flowers gemmiform or discoid. Calyj^tra cucullate, smooth. 

 Capsule globose or ovate or pyriform, cernuous or horizontal or 

 pendent, rarely erect, with a distinct stomatose collum, long- 

 pedicellate. Lid mamillate, rarely rostrate. Peristome rarely 

 absent or simple, generally double and large ; outer teeth trans- 

 versely barred, marked externally and lengthwise by a medial 

 line, the inner formed by the keeled lanceolate segments of the 

 basilar membrane, alternating with the outer teeth, sometimes 

 adherent to them, separated or not by one to three filiform 

 cilia, either nodose or appendiculate. 



82. MIELICHHOFERIA, Hornsch. 

 Flowers lateral at or above the base of the stem or of the 

 annual innovations. Leaves lanceolate, shining, serrate; areo- 

 lation narrowly hexagonal-rhomboidal or linear, uniform. Male 

 flowers gemmiform or the antheridia in the axils of pericha3tial 

 leaves. Calyptra cuculliform, very small and fugacious. Peri- 

 stome simple, of 16 narrow distantly trabeculate teeth proceed- 

 ing from an internal carinately 16-i)licate membrane. Annulus 

 large. 



1. M. nitida, Nees & Hornsch. Dioecious: plants in com- 

 pact tufts ; stems divided into fastigiate slender filiform innova- 



