HvPNACEiE.] 60 [Amblystegium. 



Syn. — Hypnum heierophyllum aquaticum, polycephalum repetis Dill. Hist. muse. 293, t. 37, 

 f. 27A (1741) et Herbar. 



Hypnum palustre HuDS. Fl. angl. 429 (1762). L. Sp. pi. 2 ed. 1593 (1763). Schreb. 

 Spic. fl. Lips. loi (1771). Wither. Bot. arrang. ii, 687 (1776). Web. Spic. fl. Goett. 

 68 (1778). Roth Fl. germ. Ill, P. I, 295 (1800). Brid. Muse. rec. II, P. II, 117 

 (1801), Mant. 181 (1819), Bry. univ. ii, 639 (1827). Smith Fl. brit. 1309 (1804), Eng. 

 Bot. t. 1665. Turn. Muse. hib. igi (1804). Web. Mohr. Bot. Taseh. 365 (1807). 

 RoEHL. Deutseh. fl. iii, 117 {1813). Schwaeg. Suppl. I, P. II, 292 (1S16). Hook. Tayl. 

 Muse. br. no (1818). Gray Nat. arr. i, 764 (1821). Hook. Fl. scot. P. 2, 147 (1821), 

 Brit. fl. ii, 93 {1833). Hueben. Muse. germ. 630 (1833). De Not. Syllab. 45 (1838). 

 Rabenh. D. kr. fl. II, sec. 3, 270 (1848). C. Muell. Synops. ii, 424 (1851). WiLS. 

 Bry. brit. 370 (1855). Schimp. Synops- 624 (i860), 2 ed. 772. Berk. Handb. br. m. 

 103, t. 7, f. I (1863). Milde Bry. Silas. 372 (1869). HoBK. Synops. 176 (1873). 

 BouLAY Muse. Fr. 25 (1884). Lesq. James Moss. N. Am. 398 (1884). HusN. Muse, 

 gall. 410, t. 119 (1894). Dix. James. Stud. Handb. 481 (1896). 



Hypnum heterophyllum Neck. Meth. muse. 168 (1771). 



Neckera palustris Willd. Prodr. fl. Berol. n. 943 (1787). 



Hypnum luridum Hedw. Muse. fr. iv, 99, t. 38 (1797), Sp. muse. 292 (1801). Swartz 

 Muse. suee. 58 (1799)- Brid. Sp. muse. II, 230 (1812). 



Hypnum adnatum (non Hedw.) Turn. Muse. hib. 165. Eng. Bot. t. 2406. 



Hypnum fluviatiU (non Hedw.) Turn. op. e. 192. Eng. Bot. t. 1303. 



Hypnum Icetevirens Turn. op. e. 149, t. 13. 



Limnobium palustre Br. Sch. Bry. eur. fasc. 55 — 56, p. 2, t. i (1853). De Not. Epilogo 

 161 (1869). 



Amblystegium palustre Lindb. Muse, scand. 33 (1879). 



Autoicous ; in yellowish or lurid green tufts, sometimes rufescent, 

 often black and denuded at base. Stems creeping, with erect or 

 ascending branches, incurved at apex. Leaves more or less secund, 

 crowded, ovato- and oblongo-lauceolate, pointed or obtuse, concave, 

 narrowed at decurrent base, margin incurved towards apex ; nerve thin 

 reaching middle or shorter and double, sometimes none ; cells short, 

 linear and flexuose, subopake, basal angular few, quadrate, not large, 

 generally with granular contents. Inner perich. bracts elongate- 

 lanceolate, many sulcate, thin-nerved. Capsule oblong or cylindraceous, 

 incurvo-cernuous, orange-brown, when dry arcuate and constricted below 

 mouth ; lid orange, convex-conic ; annulus none, teeth pale yellow, 

 arcuato-incurved, cilia 2 — 3. Male infl. small, with ovate acute nerveless 

 bracts. 



Hab. — On stones and rocks by streams ; common in subalpine districts. 

 Fr. 6. 



Var. p. hamulosTun Br. Sch. 



Slender, ascending, with few branches, rufescent. Leaves smaller, 

 falcato-secund, with a short forked nerve. 



Syn. — Limnobium palustre Var. hamulosum Bry, evir. I. c. 



