Musci. (mosses.) (43) 643 



a lateral fissure not extending through its tubular base. — Shady banks of water- 

 courses; not uncommon. (Tab. HI.) (Eu.) 



47. AUIiACOMNION, Schwsegr. (Tab. m.) 



Calyptra cuculliform. Operculum shortly and obtusely rosteUate from a 

 convex base. Capsule oblong, cernuous, striate (ribbed when dry), long-pedi- 

 ceUate, annulate. Peristome as in Bryum, but with ciliolas (2 or 3 together) 

 always present. Inflorescence moncecious or dioecious. — Plants having, be- 

 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, pedicel-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 aSAa|, 

 -aiios, a furrow, and fivlov, a moss, in allusion to the furrowed or ribbed capsule.) 



1. A. beterosticbuni, Br. & Sch. Leaves obovate-oblong, strongly 

 serrate, turned to one side ; capsule cylindrical-oblong, slightly curved ; opercu- 

 lum obliquely rostellate. — "Woods, moist shady banks, &c. ; common. — Monoe- 

 cious ; sterile flower gemmiform, axillary: pseudopodia wanting. (Tab. m.) 



2. A. turgidum, Schwsegr. Leaves ovate-oblong, obtuse, entire; cap- 

 sule curved, somewhat gibbous. — White Mountains of New Hampshire. — Dioe- 

 cious : sterile flower discoid : presence of pseudopodia doubtful. 



3. A. paliistre, Schwsegr. Leaves elongated-lanceolate, denticulate at 

 the apex ; capsule cemuous, ovate-oblong, gibbous at the back. — Borders of 

 swamps; not unfrequent. — Inflorescence as in No. 2: pseudopodia less fre- 

 quent than in the next species. (Eu.) 



4. A. andi'dgyunm^ Schwsegr. Dioecious ; a miniature resemblance 

 of the preceding species ; distinguished, by its gemmiform male flower and ob- 

 long, regular, inclined capsule : pseudopodia more abundant and fruit more 

 rare. — Chimney Kocks, 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-pediceUate, mostly annulate. Peri- 

 stome double ; the exterior 16 lanceolate teeth, with a flexuous medial line, 

 hygroscopic; articulation close, internally prominent: the interior a membrane 

 divided half-way into 16 carinate processes or cilia, alternating with the teeth; 

 intermediate ciliolse (1-3 together) mostly present. Inflorescence various: 

 male flower with filiform paraphyses. — Avery natural genus, containing nu- 

 merous species, growing on the ground or on rocks, seldom on trees; stems 

 closely csespitose, erect, sparingly branched by innovations from the floral apex ; 

 leaves enlarged as they ascend, usually of an ovate or lanceolate outline, with a 

 percm-rent costa, smooth texture, and rather large rhomboidal areolation. 

 (Bpvov, an ancient name for Moss.) 



