408 ANOPHTTES 



TRIBE 8. TRICHOSTOMA^CEAE. 



541. TRICHOS'TOMITM, Hedw. Fringe-Mass. 

 [Gr. Thrix, hair, and Stoma, mouth; from the hair-like teeth of the peristome,] 

 Calyptra cuculliform. Peristome of 32 slender capillary teeth ap- 

 proximated in pairs. Lid elongated-conical. 



1. T. pal lid H 111, Hedw. [Pale] : Monoicous,' stems short; 

 leaves setaceous from a lanceolate base, the nerve excurrent, 

 denticulate at apex; capsule oblong, erect, or slightly curved; 

 pedicel 1 to 2 inches long, straw-colored ; lid conical, short-beaked. 

 Open woods, on the ground. 



2. T. tortile, Schrad. [Twisted]: Dioicous; leaves spreading, 

 lance-subulate, channelled, denticulate at the apex of the excurrent 

 nerve ; capsule erect, oblong-elliptical ; pedicel to f of an inch in 

 length ; teeth of the peristome somewhat oblique. Clay grounds ; 

 roadsides, &c. 



542. BAR'BUXA, Hedw. Beard-Moss. 



[Latin, diminutive of Sarba, a beard ; in reference to the capillary peristome.] 

 Calyptra cuculliform. Peristome of 32 filiform spirally-twisted teeth, 

 Lid elongated-conical. 



1. B. imguicul&ta, Hedw. [Clawed']: Dioicous; stems elon- 

 gated, dichotomous; leaves erect-spreading, oblong-lanceolate, ob- 

 tuse, pointed by the excurrent nerve, the margins revolute ; capsule 

 cylindrical ; pedicel about an inch long ; lid long-beaked, subulate. 

 Clay grounds. 



2. B. caespitjsa, Schwaegr. [Tufted]: Monoicous; stems 

 short; leaves pale green, crowded, linear-oblong, taper-pointed, 

 mucronate by the excurrent nerve, wavy; capsule cylindrical, 

 slightly curved, yellowish ; pedicels J an inch to an inch long ; 

 teeth of the peristome long, and, with the lid, red. Dry woods, at 

 the base of trees. 



TRIBE 9. DICRANA V CEAE. 



543. CERAT'ODON, Brid. 



[Gr. Keras, a horn, and Odous, a tooth ; the teeth nodulose, like a goat's horn.] 

 Calyptra cuculliform. Capsule oblong, somewhat strumose. Peri- 

 stome single, of 16 lanceolate teeth 2-cleft nearly to the base, their 

 articulations prominent. Lid conical-beaked. Dioicous. 



1. C. purpureilS, Brid. [Purple] : Stems tufted, fastigiately 

 branched; leaves keeled, oblong-lanceolate, nerved to the apex, 

 the margins reflexed ; capsule cylindrical, nodding, striate ; pedicel 

 f of an inch long, and, with the capsule, dark shining purple. Old 

 roofs ; and on the ground : common. 



544. ICRA V IUM, Hedw. Fork-Moss. 



[Gr. Dikranon, a flesh-fork; the peristome-teeth cleft, or forked.] 



Calyptra cuculliform. Peristome single, of 16 equidistant teeth 



which are 2- or 3-cleft nearly to the middle, the lobes equal and 



parallel. Lid beaked. 



