Hypnum.-} D I PL O PERI ST OM T. 183 



v. 1. P. II. p. 82. Brid. Meth. p. 170. Hook. FL Scot. P. II. p. 



146. ffobson, Brit. Mosses, v. 1. n. 92. Drummond, Muse. Scot. v. 2. 



n. 78. Am. Disp. Muse. p. 67 Dill. Muse. t. 39. f. 38 and 39. 



HAB. Woods and on heaths, common. 



Stems slender, from four to six inches long, variously 

 branched, with the leaves sometimes recurved at the extremity, 

 so as to form a disk in the centre. 



2. Leaves secund. 

 A. Leaves with a single nerve. 



55. H. filicinum; branches pinnate, leaves especially the upper 

 ones falcato-secund broadly ovate acuminated serrated their 

 nerve reaching to the point, capsule oblongo-ovate curved, 

 cernuous, lid conical. (TAB. XXVI.) 



Hypnura filicinum. Linn. Sp. PL p. 1590. Hedw. Sp. Muse. 

 t. 76. / 510. Turn. Muse. Hib. p. 197. Smith, FL Brit. p. 1334. 

 Engl. Bot. t. 1570. Moug. et Nestl. n. 228. Hook. FL Scot. P. II. 

 p. 147. Hobson, Muse. Brit. v. 2. n. 71. Drummond, Muse. Scot. 

 v. 2. n. 79. Schwaegr. Suppl. v. 1. P. II. p. 297. Brid. Meth. p. 

 177. Am. Disp. Muse. p. 67. 



Hypnum dubium. Swartz. Engl. Bot. t. 2126. Turn. Muse. Hib. 

 p. 195. 



Hypnum fallax. Brid. Muse. v. 3. t. 3.f. I. Engl. Bot. t. 2127. 

 Hypnum fluviatile. Swartz. Hedw. Sp. Muse. p. 277. t. 72. f. 4.? 

 Brid. Meth. p. 182. together with lanatum, gracilescens, diffusum, Seligeri, 

 of the same author. 



Hypnum Valla Clusis. Brid. Dill. Muse. t. 36. f. 19. 

 HAB. Bogs and sides of rivulets. 



This plant is subject to vary greatly in its general appearance, 

 in size, and somewhat in the shape and direction of the leaves. Its 

 branches are erect, pinnate, frequently clothed with downy 

 ferruginous roots ; and the stems themselves, and nerves of the 

 leaves are reddish brown. The cauline leaves are the shortest 

 and broadest, with the nerve excurrent, which is characteristic 

 of the species, and, together with the less falcate foliage, dis- 

 tinguishes it from H. commutatum, notwithstanding that 

 Schwaegrichen has lately united them. The large variety, 

 growing in running water, is the H. fallax of Engl. JBot., and 

 probably also of Bridel. But this again Schwaegrichen has 



M4 



