musct. (mosses.) 643 



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

 courses; not uncommon. (Tab. 17.) (Eu.) 



47. AULACOMNIOIV, Schwaegr. (Tab. 17.) 



Calyptra cuculliform. Operculum shortly and obtusely rostellate from a 

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

 cellate, annulate. Peristome as in Bryum, but with ciliolre (2 or 3 together* 

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

 sides a peculiar habit of their own, a mixed resemblance to species of Milium, 

 Bartramia, and Meesia; stems erect, tomentosc; 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 auAa£, 

 -cikos, a farrow, and nviov, a moss, in allusion to the furrowed or ribbed capsule.) 



1. A. SietCB'dsticilBSBBl, 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 geminiform, axillary : pseudopodia wanting. (Tab. IT.) 



2. A. tiai'gidlBlll, Sehwabgr. 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. palfiStl'C, Sehwregr. 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- 

 quent than in the next species. (Eu.) 



4. A. amlrogyiBtiiil, Schwaegr. Dioecious ; a miniature resemblanco 

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

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

 rare. — Chimney Rocks, on the French Broad River, Tennessee. (Eu.) 



48. BRYUM, Br. & Sch. (Tab. 18.) 



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, mostly annulate. Peri- 

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

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

 divided half-way into 1G 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 crespitose. erect, sparingly branched by innovations from the floral apex ; 

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

 pcreurrent costa, smooth texture, and rather large rhomboidal areolation. 

 (Bpvov, an mcient name for Moss.) 



