417 



4. I*, rosf rata, Iltdw. [Beaked]: Stems ascending, variously 

 divided ; branches very crowded, short, erect, terete ; leaves pale 

 green, ovate-lanceolate, attenuated, the strong nerve percurrent; 

 capsule ovoid-oblong ; pedicel about of an inch long ; lid obliquely 

 beaked from a conic base. Woods, at roots of trees. 



5. I*. deiltiClllata, Sulliv. [Denticulate'] : Stems creeping 

 and fastigiately branched ; branches erect, crowded, a little com- 

 pressed ; leaves palish green, densely imbricated, ovate, concave, 

 pointed, denticulate, nerveless; capsule oval-oblong; lid obliquely 

 short-beaked. On rocks, and roots of trees. Fruit very rare. 



6. L,. Iiil^ilis, Hook. $ Wils. [Fragile]: Stems creeping, 

 irregularly divided ; branches filiform, rigid and very fragile ; 

 leaves deep green, minute, appressed when dry, ovate-lingulate, 

 rather acute, nerved to the middle. On trees. Fruit not seen. 



TRIBE 19. HYPNA'CEAE. 

 561. IIYP'WUM, L. Feather-Moss. 



[An ancient Greek name for some MOBS.] 



Calyptra cuculliform. Capsule nodding, unequal (the upper side 

 more convex), with an oblique orifice. Peristome double; the outer 

 of 16 lanceolate teeth; the inner a keeled- furrowed membrane 

 divided into 16 entire, or perforated cilia, with ciliolae interposed. 

 Lid various. Fructification monoicous, or dioicous. 

 $1. Stems and branches flat; leaves bifarious. 



1. II. syliiiticiim, L. [Wood]: Stems tender and fragile; 

 branches lance-linear, frond-form, tapering, loose, sometimes root- 

 ing at apex; leaves broadly lanceolate, pointed, with narrowly 

 reflexed margins, decurrent, shining; capsule oblong, erect-nod- 

 ding ; pedicel near an inch long ; annulus large ; peristome white ; 

 lid elongated-conic, acute. Crevices of moist rocks. 



2. H. deplanatum, Br. $ Sch. [Flatted] : Stems tough, 

 much divided; branches obtuse, rather short, rooting along their 

 whole length ; leaves slightly serrulate ; capsule short, oblique, or 

 somewhat horizontal. Woods, on roots of trees, &c. 



3. II. Silesiacum, Beauv. [Silesian]: Stems decumbent; 

 leaves lanceolate, with an attenuated flexuose point, serrulate ; 

 capsule cylindrical, erect-nodding ; annulus large ; pedicel to 

 an inch long ; lid hemispherical-conic, apiculate. At roots of trees. 



4. H. riparium, L. [Bank] : Stems procumbent, extended, 

 branched ; branches divided, flaccid ; leaves distant, divergent, 

 ovate-lanceolate, flat, entire, nerved half-way up ; capsule oblong, 

 rather nodding ; pedicel near an inch long ; lid conic, mammillate. 

 On logs in swamps : Variable in size. 



5. II. serrulatum, Hedw. [Serrulate]: Stems creeping, 

 irregularly divided ; leaves distant, lanceolate, acuminate, serrulate, 

 the nerve extending above the middle ; capsule oblong, nodding ; 

 annulus none ; pedicel about f of an inch long ; lid conic, long- 

 beaked. Dry woods, on the ground. 



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