MITSCI 409 



ft0. [Broom]: Stems 2 inches long, ascend- 

 ing, branched ; leaves falcate, secund, lance-subulate, channelled, 

 serrulate ; capsule subcylindric, rather nodding ; pedicel 1 inches 

 long; lid long-beaked. Woodlands; on the ground, and decayed 

 logs. 



2. D. undulatum, Ehrh. [ Wavy] : Stems about an inch 

 long ; leaves subsecund, lanceolate, nearly flat, thin, serrulate, trans- 

 versely undulate ; capsule subcylindric, curved ; pedicels fascicled 

 (2 to 5 from the same perichaeth), 1J inches in length. On the 

 ground. 



J. I>. Scliradori, Web. $ JHohr. [Schrader's]: Stems erect; 

 leaves crowded, erect, not secund, linear-lanceolate, acuminate, 

 slightly denticulate, when dry somewhat rugose ; capsule oblong ; 

 pedicel 1, or 1J inches long. Damp woods. 



4. D. flagellare, Hedw. [ Whip-like] : Stems erect, near 2 

 inches high, densely crowded, emitting from near their summits 

 slender and rigid innovations furnished 'with minute imbricated 

 leaves ; stem-leaves linear-subulate, secund ; capsule subcylindric, 

 erect ; pedicels about an inch long. Damp woods; decayed logs. 



5. H. longifolilim, Ehrh. \Long-leaved~\-. Stems ascending, 

 branched; leaves falcate, secund, elongated, bristly-subulate, slightly 

 serrulate, the nerve very broad; capsule oblong, erect; pedicel 

 about an inch long. Hilly woodlands. 



6. D. beteromallum, Hedw. [Part-villous]: Stem erect, 

 nearly simple ; leaves falcate, secund, subulate from a broad base, 

 slightly serrulate ; capsule obovoid-oblong, slightly nodding ; pedi- 

 cel an inch to f in length, and, with the capsule, reddish-brown ; 

 lid with an oblique subulate beak. Shaded banks. 



?. I>. variiim, Hedw. [ Various] : Stems short, nearly simple ; 

 leaves erect-spreading, sometimes secund, lance-subulate; capsule 

 obovoid, rather oblique ; pedicel to an inch long ; lid conic, 

 with a short beak. Moist grounds. Whole plant reddish-brown. 



TRIBE 10. LEUCOBRYA^CEAE. 



545. I.EtJCO^BRYUM, Hampe. 

 [Gr. Leukos, white, and Bryon, Moss ; from its pallid color.] 

 Calyptra cuculliform. Capsule oblong. Peristome single, of 1C slen- 

 der 2-cleft densely-jointed teeth, the lobes equal, divergent. Lid 

 with a subulate beak. 



1. Ij. vulgare, Hampe. [Common]: Stems erect, 2 inches high, 

 divided above, fastigiate, fragile ; leaves closely imbricated, erect, 

 ovate-lanceolate, channelled, rather obtuse, nerveless, entire; cap- 

 sule slightly strumose and curved, striate when dry ; pedicel about 

 an inch long. Wet woods ; growing in dense glaucous-green tus 

 socks. 



TRIBE 11. FISSIDENYTEAE. 



546. FISS'IDENS, Hedw. Split-tooth Moss. 



[Latin, Jissus, split, and dens, tooth ; the teeth of the peristome being cleft.] 



Calyptra cuculliform, rarely conic-mitriform. Pedicel sometimes 



