Hijpnum.] BRYACE^. 39;^ 



1. c, as Stereodon. H. lyrotitberans^ Brid. Bryol. Univ. ii. 612. 

 H. pallescens, Bruch & SchimiJ. Bryol. Eur. t. 586 ; Aust. Muse. 

 Appal, n. 414. 



Hab. Bark and trunks of trees, either decayed or living, in subalpine 

 regions ; very common and variable, but rare in the plains except north- 

 ward. 



149. H. fertile, Sendt. Tufts soft, compressed, yellowish 

 or pale green ; stems densely pinnate-ram ulose, creei^ing : leaves 

 long, ovate at base, subulate-acuminate, imbricate, secund, 

 subcircinnately hooked when dry ; borders reflexed toward the 

 base, minutely serrulate at the apex; costa double, yellow and 

 very obscure, or none ; perichoetium long, squarrulose below, 

 the inner leaves long, erect, gradually acuminate, narrowly 

 costate: capsule long-pedicellate, incurved-cernuous, oval or 

 oblong, turgid, soft, darker colored underneath, scarcely nar- 

 rowed under the orifice when dry ; operculum large, highly con- 

 vex, mamillate and apiculate; teeth large, ferruginous below; 

 segments nearly entire ; cilia two or three, perfect, not appen- 

 diculate; annulus large, compound. — Regcnsb. Denkschr. iii. 

 147 ; Bryol. Eur. t. 591. 



Hab. Prostrate trunks, moist rocks, etc., in woods on hills and moun- 

 tains; not common. 



150. H. hamulosum, Bruch & Schimp. Densely ccspitose, 

 yellow or pale reddish-brown ; stems slender, fragile, regularly 

 pinnate-ramulose : leaves hamulose-secund, ovate at base, gradu- 

 ally narrowly lanceolate-acuminate, slightly denticulate at the 

 apex; costa double, obsolete or none; areolation narrowly 

 hexagonal-vermicular, with a single row of slightly enlarged 

 cells at the angles ; inner perichaetial leaves ecostate : capsule 

 incurved-cernuous, nearly horizontal, oval or oblong-cylindrical; 

 operculum highly convex, long-apiculate ; peristome as in the 

 last, but more delicate; annulus doitble. — Biyol. Eur. t. 590. 

 Stereodon hamidosns, Lindb. Muse. Scand. 38. 



Hab. Rocky Mountains {Drummond). 



151. H. depressulum, Muell. Differs from the last in its 

 shining yellow color, the leaves more distant, imbricate-secund 

 or homomallous, ovate-lanceolate, narrowly-acuminate, subser- 

 rulate at the apex, obsoletely bicostate, the cells elliptical, less 

 compact, the alar enlarged-quadrate and pellucid, the capsule 

 smaller, turgid-oval, cernuous, the lid shorter, conical-acute, 

 not rostrate. — Regensb. Flora, Iviii. 91 (1875). H. hamulo- 



