402 BRYACE^. [Hi/pnum. 



prostrate or ascending, rootless, slightly ramulose ; branches 

 fastigiate, incurved at the apex: leaves close, niultiforni, and 

 diversely curved, falcate or secund, broadly ovate or ovate- 

 oblong, lanceolate, more or less acuminate, acute or blunt, 

 Bulcate, concave ; costa simple or forking, ascending to the 

 middle ; borders entire or obscurely denticulate at the apex ; 

 areolation narrow, flexuous or vermicular, much enlarged rect- 

 angular and hyaline at the angles ; perigynium long and peri- 

 cha'tium squarrose, the perichastial leaves ecostate and not 

 sulcate, lanceolate-acuminate, obtusely serrate at the apex : 

 capsule cernuous from a short inflated erect collum, oval or 

 oblong; operculum convex, mamillate ; teeth short, light orange 

 with a broad hyaline border ; articulations distant ; segments 

 cleft between the articulations ; cilia very slender, two or three, 

 unequal, shorter than the segments ; annulus large, trii)!e. — 

 Wils. Brvol. Brit. 400. Livinobiuni ochraceum. Bruch &> 



Ml ' 



Schimp, Bryol. Eur. t. 580. Stereodon ochraceus^ Mitt. 1. c. 

 Anihlystegium ochraceum, Lindb. 



Hab. Mountain rivulets; Pocono, Alleghany, Catskill and White 

 Mountains; British Columbia (Lyall)\ Davis Strait (Taylor). 



Subgenus XXV. CALLIERGON. 



Plants large, erect or procumbent, generally long and widely 

 cespitose, with few simple branches or subpinnately ramulose, 

 and with few radicles. Leaves large, cordate, ovate or ovate- 

 oblong, obtuse, deeply concave, spreading or imbricate, rarely 

 secund ; areolation linear, narrow. Capsule oblong, incurved. 

 Operculum convex-conical. 



* Stems more or less pinnately ramidose: leaves spreading or 



loosely imbricate. 



173. H. COrdifolium, Hedw. Monoecious: tufts loose, soft, 

 green, erect ur drooi)ing; stems flexuous, very long : stem-leaves 

 cordate-ovate or broadly ovate, oblong, obtuse, long-decurrent, 

 soft, very entire, simply costate to near the apex ; cells of the 

 borders and of the apex very narrow, looser and rhomboidal in 

 the middle, those of the angles and base large, hexagonal- 

 rectangular with the primordial utricle distinct; perichastium 

 long, the leaves imbricate, acuminate, costate, the inner sub- 

 clasping : capsule long-pedicellate, oblong-cylindrical, horizontal, 



