280 BOTANICAL GAZETTE [OCTOBER 
Has.: On wet rocks, usually in mountain streams. Type 
locality Tallulah Falls, Georgia. # 
North America: Georgia, Virginia, West Virginia, Pennsyl- 
vania, New York, New Jersey, Maine. Rare or local. 
The most distinctly characterized of all our Amblystegia. No diffi- 
culty need be experienced in separating it from other species if one of its 
leaves is at hand. The leaf border is evident under moderate magnification. 
AMBLYSTEGIUM RIPARIUM (Hedw.) Br. & Sch. Plate XIIL. fig. 7. 
Synon.: A/ypnum riparium Hedwig, Musc. Frond. 4:7 fé. 3. 1797. 
Spec. Musc. 241. 1801.—Abbot, Flora Bedfordiensis 250. 1798.—Hull, Brit- 
ish Flora 2:273. 1799.—Swartz, Musc. Suec. 1799.—Bridel, Musc. Recent. 
3:176. 1801. Spec. Musc. 2:112. 1812. Mant. Musc. 157. 1819. Bry. 
Univ. 2:412. 1827.—Smith, FI. Brit. 1292. 1804. Eng. Bot. ff. 2060.— 
Turner Musc. Hib. 152. 1804.—Palisot de Beauvois, Prodr. 69. 1805-— 
Schultz, Fl. Starg. 324. 1806.—Weber & Mohr, Bot. Tasch. 331. 1807-— 
Voit, Muscorum Herbipolitano 111. 1812..-Schweegrichen, Spec. Musc. Suppl. 
1. 2:194. 1816.—Hooker & Taylor, Muse. Brit. 92. 1818.—Hooker Fl. Scot. 
2:141. 1820.—Funck, Moost. 56. /. 377. 1821.—Gray. Nat. Arr. Brit. Fi 
1:752. 1821.—Huebener, Musc. Germ. 619. 1833.—DeNotaris, Syllab. 4. 
1838.—Rabenhorst, Deutsch], Kr. Fl. 23:293. 1848.—C. Mueller, Syn. Musc. 
Frond. 2:321. 1851. Deutchl. Moos. 427. 1853.—Wilson Bry. Brit. 364- 
1855.—Sullivant, Musc. and Hepat. U. S. 79. 1856.—Berkeley, Handb. Brit. 
Moss. 98. 1863.— Hobkirk, Syn. 164. 1873.—Boulay, Musc. Fr. 76. 1884.— 
Lesquereux & James, Man. Moss. N. Amer. 376. 1884.— Dixon & Jameson, 
Stud. Handb. 452. 1896. 
Amblysteginm riparium Bruch & Schimper, Bry. Eur. Ambly. 14. pl. 8. 
1853.—Schimper, Syn. Musc. Eur. (1st ed.) 597. 1860. (2d ed.) 717. 1876.— 
Milde, Bry. Siles. 328. 1869.—De Notaris, Epil. Bry. Ital. 146. 1869.—Hart- 
mann, Skand. Fl. (1oth ed.) tg. 1871.—R. du Buysson, Ess. anal. gen. Ambly. 
1883.—Hobkirk, Syn. (2d ed.) 213. 1884.—Macoun & Kindberg. Cat. Can. '. 
6:221. 1892.— Husnot, Musc. Gall. 363. p/. zog. 1893.— Braithwaite, Brit. 
Moss. F1. 3:29. A/. 89. 1896. 
Stereodon riparium Mitten, Jour. Linn Soc. 8: 43. 1864. 
Exsiccati: Hypnum riparium Sulliv. & Lesq., Musc. Bor. Amer. (1st ed.) 
349. (2d ed.) 527.— Macoun, Can. Musc. 325. ; 
TyPeE probably not in existence. The plant was known to botanical wrl- 
ters prior to the time of Dillenius, probably early in the eighteenth century. 
Gametophyte bisexual, medium to very large, in extensive loose 
tufts, bright green to yellowish green, occasionally of a decided 
yellow or bronze: stems long, flaccid, prostrate or floating, SPat™ 
