MUSCI. (MOSSES.) (48) 643 
a lateral fissure not extending through its tubular base. — Shady banks of water- 
courses; not uncommon. (Tab. III.) u.) 
47, AULACOMNION, Schwzer. (Tab. IIL) 
Calyptra cuculliform. Operculum shortly and obtusely rostellate from a 
‘ resce’ 
sides a peculiar habit of their own, a mixed resemblance to species of Mnium, 
Bartramia, and Meesia; stems erect, tomentose ; upper portion of the branches 
in some species elongated, leafless, -eaicel: like, and terminated by capitula of 
rudimentary leaves (pseudopodia) ; leaves oblong or linear-lanceolate, costate 
nearly to the apex, with a granular dot-like areolation. (Name from adAaé, 
~akos, a furrow, and pviov, a moss, in allusion to the furrowed or ribbed capsule.) 
1. A. heteréstichum, Br. & Sch. Leaves obovate-oblong, hei 
serrate, turned to one side; seats oe i slightly ¢ opere 
lum obliquely rostellate. — Woods, moist eae c.; common: — Mone- 
cious ; sterile flower gemmiform, axillary: p sree a wanting. (Tab. III.) 
2. A. tiirgidum, Schwegr. Leaves ovate-oblong, obtuse, entire; cap- 
sule curved, somewhat gibbous. — White Mountains of New ampshire. — Dice- 
cious : sterile flower discoid: presence of psetdopodia doubtful. 
. A e, Schwee Leaves elongated-lanceolate, denticulate at 
the apex; capsule cernuous, ovate-oblong, gibbous at the back. — Borders of 
swamps; not unfrequent.— Inflorescence as in No. 2: pseudopodia less fre- 
eae than in the next species. (Eu.) 
perrnenigt ars Schwegr. Dicecious; a miniature resemblance 
of ass nl ae ; distinguished. by its gemmiform male flower and ob- 
long, pach inclined capsule: pseudopodia more abundant and fruit more 
rare. — Chimney Rocks, on the French Broad River, Tennessee. (Eu.) 
48. BRYUM, Br. &Sch. (Tab. IV.) 
Calyptra small, cuculliform, fugacious. Operculum convex, apiculate or 
shortly rostellate. Capsule pyriform, clavate or oblong, with a tapering neck 
or apophysis, inclined or pendulous, long-pedicellate, silibee annulate. Peri- 
stome double; the exterior 16 lanceolate teeth, with a flexuous medial line, 
hygroscopic; articulation close, speserntey rominent: the interior a membrane 
divided half-way into 16 carinate processes or cilia, alternating with the teeth ; 
intermediate ciliole (1-3 together) ae present. Inflorescence various : 
spe tems 
aang exspitose, erect, sparingly branched cd fanovations from the floral apex ; 
leaves enlarged as they ascend, usually of an ovate or lanceolate outline, with a 
percurrent costa, smooth texture, and ates large rhomboidal areolation. 
(Bpvoy, an ancient name for Moss.) . f 
