MDSCI. (MOSSES.) 653 



1. S. anipullaceiim, L. Stems '-2' long; leaves oblong- or obo- 

 vate-lanceolate, acuminate, entire or irregularly dentate ; apophysis violet-purple, 

 obovate, tapering into the puqjlish pedicel, and twice or thrice the width of the 

 yellow capsule. New England to Pennsylvania : rare. (Tab. 18.) (Eu.) 



2. S. rubruui, L. Stems short (3" -6"); leaves spatulate-obovate, long- 

 pointed, serrate, somewhat complicate and undulate on the margins ; apophysis 

 deep red, very large, umbrella-shaped, 7-10 times as wide as the minute cap- 

 sule ; pedicels 4' - 5' long. Maine, A. Young. (Eu.) 



58. TETRAPL.ODON, Br. & Sch. (Tab. 18.) 



Calyptra small, conic, entire, or split on one side and somewhat cucullifonn. 

 Operculum conical-convex, obtuse. Capsule erect, small, oval-oblong, with a 

 solid clavate apophysis tapering into an exserted pedicel. Peristome single, of 

 16 double teeth, at first in fours, afterwards in pail's, reflexed when dry. Colu- 

 mella not emergent. Inflorescence monrecious : male flower gemmiform or 

 capitulaeform, axillary or tenninal. A genus scarcely separable from the last ; 

 besides the above characters, the stems are more compactly caespitose ; the apo- 

 physis does not increase in size after the maturity of the capsule, and the color 

 and consistence of the two is uniform ; the cellular tissue of the leaves not so 

 lax ; and the habitat is on animal substances, or on the dung of carnivorous ani- 

 mals. (Name from TerpairXoos, fourfold, and oScoi/, tooth; the teeth of the peri- 

 stome being at first in fours.) 



1. T. angustatus, Br. & Sch. Stems '-3 long, radiculose; leaves 

 erect-patent, remote, oblong-lanceolate, produced into a long flexuous point, ob- 

 soletely or distinctly dentate ; apophysis oblong-obconic, somewhat wider than 

 the capsule ; calyptra whitish, conic, cuculliform, descending to the top of the 

 apophysis. White Mountains of New Hampshire, B. D. Greene, Oakes : Lake 

 Superior, Loring. A northern species. (Eu.) 



2. T. australiS, Sulliv. & Lesqx. (Muse. Bor.-Amer., No. 151.) Re- 

 sembling very closely the last species ; leaves often with 3-5 large tooth-liko 

 lobes on each side, sometimes almost pinnatifid, rarely simply dentate or nearly 

 entire ; apophysis much longer and more tapering ; teeth of the peristome less 

 deeply inserted within the capsule's mouth, the rim of which has angular-rotund 

 (not transverse'y oblong) cellules; calyptra yellowish, elongated-conic, (not 

 split on one side,) descending scarcely to the base of the hemispherical apiculate 

 operculum. (Splachnum sctaceum, Hook, fr Wlls. in Drum. 2d coll. No. 27; 



not of Michx., whose plant was from Canada, and most probably belongs to 

 the preceding species.) Swamps, near the sea-coast, New Jersey to Florida. 



It is doubtful whether this species belongs to the present, or to the last 

 genus. (Tab. 18.) 



3. T. mnioidcs, Br. & Sch. Stems '-2' high; leaves erect-patent, 

 rather close, elliptic-oblong or obovate, concave, suddenly attenuated into a long 

 flexuous point ; capsule and its clavate apophysis of about the same width, both 

 dark red. Catskill Mountains, New York, Olney. (Eu.) 



55* 



