Hypnace^.1 



73 



plicate, the stem and branch leaves sometimes diflfering in form 

 generally verrucose, or smooth ; lid with a long beak. 



[Hypnum. 

 Seta 



Clavis to the Species. 



Synoicous, robust with glossy leaves. speciosum. 



Dioicous. 



Seta smooth. 



Stem- and branch-leaves dimorphous. 



Branches short, straight strigosum. 



julaceous, arcuato-recurved. circinatum. 



Stem- and branch-leaves homomorphous. 



Leaves strongly plicate, branches long, arcuate. striatum. 



feebly plicate, acuminate, branches short. meridionale . 



, branches longer, acute. stnatnlum. 



Seta rough. 



Leaves feebly plicate, with short acute points. crassinervc. 



not plicate. 



Stem-leaves differing from branch-leaves, cordate, recurved 



with long tapering points. prcelongum. 



Stem-leaves and branch-leaves alike, nerve ending at back 

 in a thorn-like point. 

 Perich. bracts not squarrose. pallidirostre. 



squarrose. 



Tufts dense, rather rigid. 



Stolons frequent, branches and seta long, leaf- 

 point not twisted. Swarizil. 



rare, branches short obtuse, leaf-points 



twisted J, seta short. Schleicher!. 



Tufts very loose, all leaves distant. 



Not glossy, cells of leaf-points elongate, perich. 



bracts with a slender nerve. distans. 



Glossy, cells of leaf-points shorter and broader, 



perich. bracts nerveless. hians. 



5. HYPNUM STRIATUM Schreb. 



Dioicous ; stems loosely tufted, arched and procumbent or sub- 

 dendroid, rigid. Leaves patent, cordate-acuminate, striated, coarsely 

 serrate, nerved | length. Capsule subcylindric, curved, cernuous, lid 

 rostrate. (T. XCVIII, D.) 



Syn. —Hypnum vulgare dentaium, operculis cuspidaiis. Var. major setis et capsulis longioribus. 

 Dill. Hist. muse. 297, t. 38, f. 30 B (1741), et Herbar. 



Hypnum striatum Schreb. Spicil. fl. lips, gi (1771). Hedw. muse. fr. iv, 32, t. ig (i7g4), 

 Sp. muse. 275. Wither. Bot. arr. 3 ed. iii, 850 (1796). Roth Fl. germ, i, 466 (1788). 

 HoFFM. Deutsch. fl. ii, 75 (i7g5). Swartz Muse. suec. 60 (i7gg). Smith Fl. brit. 

 1321 (1804), Eng. Bot. t. 1648. Turn. Muse. hib. 180 (1804). P. Beauv. Prodr. 66 

 (1805). ScHWAEG. Suppl. 1, p. II, 238 (1816). Hook. Tayl. Muse. brit. 106 (1818). 

 Hook. Fl. Scot. P. z, 145 (1821). Gray Nat. arr. i, 761 (1821). Funck Moost. 60, t. 

 43 (1821). Wahlen. Fl. suec. ii, 704 (1826). Hook. Br. fl. ii, 89 (1833). De Not. 

 Syllab. 3g (1838). Rabenh. D. kr. fl. II, S. 3, 278 (1848). C. Muell. Synops. ii, 

 460 (1851). Wils. Bry. brit. 352 {1855). Berk. Handb. br. m. 91 (1863). Hobk. 

 Synops. 154 (1873). BouL. Muse. Fr. 112 (1884). 



Hypnum longirostre Ehrh. PI. crypt, exs. Dec. 8, no 75 (1788). Brid. Muse. rec. II, P. II, 

 154 (1801), Sp. muse. II, 193 (1812), Mant. 174 (1819), Bry, univ. ii, 502 (1827). 

 Schultz Fl. starg. 329 (1806). Web. Mohr Bot. Tasch. 324 (1807). Voit Muse, 

 herbip. 94 (1812). Roehl. Deutsch. fl. iii, in (1813). Hues. Muse. germ. 670 (1833). 



Hypnum elasticum Brid. Sp. muse. II, 256. Mant. 184. 



Eurhynckium longirostre Br. Sch. Bry. eur. fasc. 57 — 61, p. 6 t. 5 (1854). 



