354 BRYACE^. \Rypnum. 



oblong, sheathing at base, narrowed to a filiform flexuous point, 

 subecostate : capsule oval-oblong, gibbous-ovate ; operculum 

 conical, short-rostrate ; peristome normal ; annulus simple, per- 

 sistent. — Sulliv. Muse. & Hepat. of North. U. States (1848, 

 correction). Mosses of U. States, 69, and Icon. Muse. 165, t. 

 105. H. prcelougum, Sulliv., Gray's Manual, ed. 1, 670. 



Hab. On the ground in the margins of woodlands, by brooks, etc. 



Intermediate between H. prcelongmn and H. Whippleannm,, differing 

 from the first in its shorter operculum, and the slenderly acuminate leaves, 

 scarcely papillose on the back. In H. Whippleannm, the exannulate cap- 

 sule is abruptly horizontal, the lid is shorter and conical-apiculate, and 

 the leaves of a thicker texture, strongly papillose, and with a thick pel- 

 lucid costa reaching nearly to tlie apex. 



77. H. hians, Hedw. Plants depressed, cespitose, yellowish 

 green, shining; stems with few branches, flexuous, creeping; 

 branchlets distichous, short, nearly simple : leaves loose, flat or 

 spreading, cordate-ovate, more or less long-pointed, plano-con- 

 cave, recurved on the borders, serrulate only above, narrowly 

 costate to above the middle ; areolation long, hexagonal ; peri- 

 chtetial leaves long, narrowly short-acuminate, shar2:)ly serrate 

 at the apex, squarrose, the inner subecostate : vaginule hirsute 

 by long protruding paraphyses : capsule oval-oblong, cernuous, 

 subincurved ; lid long, subulate-rostrate from a convex-conical 

 base ; teeth prominently lamellose inside ; segments as long as 

 the teeth, cleft ; cilia two, a little shorter than the segments. — 

 Spec. Muse. 272, t. 70 ; Sulliv. Mosses of U. States, 69, and 

 Icon. Muse. 163, t. 104. Pterigynandrum apiculatum, Brid. 

 Muse. Kecent. Su2:)pl. i. 137. JL j^rcelongiim, Muell. Syn. ii. 

 446, in part. 



Hab. Moist shady banks, hillsides in woods; common. 



78. H. Stokesii, Turn. Tufts rigid, somewhat inflated, 

 bright or dirty green ; stem thick, solid ; branches simple below, 

 densely pinnate and bipinnate above with stout simple rigid 

 squarrose-foliate branchlets : stem-leaves distant, divaricate and 

 recurved, costate, acuminate, excavate at the decurrent angles, 

 those of the branchlets smaller, erect-spreading, broadly ovate- 

 lanceolate, acuminate, all narrowly costate to below the point, 

 sharply serrate all around ; pcrichnetium squarrose, the inner 

 leaves long, filiform-acuminate, serrate, ecostate : capsule hori- 

 zontal, subpendent when dry, oblong or oval, subcylindrical and 

 constricted under the orifice when dry and empty ; operculum 



