334 BRYACE^. [Hypnum. 



nate ; costa long and slender ; inner perichfetial leaves very- 

 long, filiform-acuminate : capsule cylindrical-oblong, more or less 

 arcuate ; pedicel smooth ; peristome normal, the teeth yellow ; 

 annulus compound. — Spicil. Fl. Lips. 92 ; Bryol. Eur, t. G22. 

 Camptothecmm nitens, Schimp. Syn. 530. 



Hab. Peat bogs and prairie swamps, in tlie northern districts; rarely 

 found in fruit. A variety witli stems and branches more slender and of a 

 different aspect has been sent from New York by E. C. Howe, but ex- 

 cepting the attenuation of all the parts, the characters are identical. The 

 relation of tlie species to the group is not definite. 



34. H. megaptilum, Sulliv. Ms. Plants highly cespitose, 

 whitish or pale green, glossy ; stems robust, erect, pinnately 

 branching, rootless ; branches short, horizontal, distichous, the 

 upjier turgid : leaves crowded, erect, imbricate, narrowly ovate 

 above the subdecurrent base, lanceolate, short-apiculate, very 

 plicate, concave, costate to the middle, subrevolute on the bor- 

 ders, denticulate all around and on the back upon the costa and 

 the keels of the folds ; cells of the areolation long, narrow, 

 linear, chlorophyllose, the alar few and irregular : flowers 

 pseudomonoecious ; male buds radiculose, attached in the folds 

 of the leaves : capsule ovate-oblong, slightly curved, much 

 arcuate and constricted under the orifice when empty ; pedicel 

 thick, short, scabrous, dark red ; operculum conical, apiculate, 

 constricted in the middle ; segments carinate, entire, with two 

 intermediate appendiculate cilia as long as the teeth. — Campto- 

 thecium (?) megaptilum^ Sulliv. Icon, Muse. Suppl. 102, t. 78. 



Hab, On the ground in deep coniferous woods; Oregon (£'. Rail). 



Subgenus VIII. BRACHYTHECIUM. (PI. 5.) 

 Plants generally large, loosely cespitose, prostrate or creeping, 

 irregularly branching, subpinnately ramulose, neither paraphyl- 

 late nor tomentose, densely foliate. Leaves broadly ovate and 

 oblong-lanceolate, long-acuminate or narrowed into a filiform 

 point, minutely serrate, irregularly plicate lengthwise, cordate 

 and more or less decurrent at base, not glossy ; areolation elon- 

 gated rhomboidal, the alar quadrate, somewhat chloroj^hyllose or 

 with the primordial utricle distinct. Capsule horizontal or cer- 

 nuous (suberect in 11. acuminatum)^ thick, turgid-ovate or ob- 

 long, incurved. Pedicel smooth or rough. Operculum large, 



