HYPNACE^E.] 64 [Amblystegium. 



laxer, narrowly rhomboid, at base and angles hexagono-rectangular. 

 Capsule oblong-cylindric, arcuate. (T. XCVI, B.) 



SYH.Hypnum cordifolium HEDW. Muse, frond, iv, 97, t. 37 (1797), Sp. muse. 254 (1801). 

 SWARTZ Muse. suec. 62 (1799). BRID. Muse. rec. II, P. II, 180 (1801), Sp. muse. II, 

 121 (1812), Mant. 159 (1819), Bry. univ. ii, 565 (1827). SMITH Fl. brit. 1318 (1804), 

 Eng. Bot. t. 1447. SCHULTZ Fl. Starg. 337 (1806). WEB. MOHR. Bot. Tasch. 320 

 (1807). VOIT Muse. Herb. 119 (1812). ROEHL. Deutsch. fl. iii, 104 (1813). SCHWAEG. 

 Suppl. I, P. II, 229 (1816). HOOK. TAYL. Muse. brit. 107 (1818). FUNCK Moostasch. 

 59, t. 41 (1821). HOOK. Fl. scot. P. 2, 146 (1821), Brit. Fl. ii, 90 (1833). GRAY Nat. 

 air. Br. pi. i, 762 (1821). HUEBEN. Muse. germ. 654 (1813). RABENH. D. kr. fl. II, 

 S. 3, 289 (1848). C. MUELL. Synops. ii, 379 (1851). BR. SCH. Bry. eur. fasc. 57 6r, 

 p. 47, t. 32 (1854). SCHIMP. Synops. 641 (1860), 2 ed. 785. WILS. Bry. brit. 374 (1855). 

 BERK. Handb. 107, t. 7, f. 6 (1863). MILDE Bry. siles. 367 (1869). HOBK. Synops. 178 

 (1873). BOULAY Muse. Fr. 15 (1884). LESQ. JAMES. Moss. N. Amer. 402 (1884). 

 HUSN. Muse. gall. 415, t. 120 (1894). Dix. JAMES. Stud. Handb. 488 (1896). 



Hypnum cuspidatum (3. bicolor TURN. Muse. hib. 176 (1804). 

 Hypmnn phyllorhizans P. BEAUV. Prodr. 67 (1805). 

 Amblystegium cordifolium DE NOT. Epilogo 136 (1869). 



Autoicous ; in lax soft bright or yellowish-green tall or depressed 

 tufts. Stems 3 6 in. high, flexuose-erect or procumbent, sparingly 

 radiculose, repeatedly divided, ramuli few, scattered, acute at points. 

 Cauline leaves cordate-ovate and broadly ovate-oblong, muticous, 

 erecto-patent, contracted at base and longly decurrent, soft entire, 

 nerve slender, nearly reaching apex; upper cells narrowly rhomboid, 

 laxer in middle, all at base and angles pellucid, dilated hexagono- 

 rectangular, chlorophyllose. Perichaetium on a longish rooting branch, 

 long, imbricated, bracts acutely acuminate, long-nerved, inner sub- 

 vaginant. Capsule on a long seta, horizontal, oblongo-cylindric, when 

 moist subincurved, when dry arcuate, badious leptodermous exannulate, 

 lid mamillar ; peristome large, pale yellow, processes hyaline, entire, 

 cilia 2 3, slender. 



HAB. Marshy fields and ditches. Fr. 4 5. 



This pretty moss is not uncommon, but the fruit is not by any means so, 

 but when it does occur is plentiful, and a mass of it is a beautiful sight. 

 Resembling cuspidatnm somewhat, the nerved leaf will at once distinguish it ; 

 like several allies constantly growing in water, it frequently throws out tufts 

 of radicles from the ends of the leaves. 



40. AMBLYSTEGIUM SARMENTOSUM (Wahl.) De Not. 



Dioicous ; in depressed purple tufts with short pointed branches. 

 Leaves crowded, erecto-patent, elliptic-oblong, concave, cucullate, 

 apiculate, nerved nearly to apex, base with decurrent auricles. 

 (T. XCVI, C.) 



