208 DIPLOPERISTOMI. {Bryum. 



1371. Engl JBot. t. 1449. Hook, in Fl. Lond. ed. 2. (with a fig.) 

 Moug. et Nestl n. 420. Hook. FL Scot. P. II. p. 151. Hobson, Brit. 

 Mosses, v. 1. n. 105. Drummond, Muse. Scot. v. 2. n. 96. Arn. Disp. 

 Muse. p. 44. 



Bryum undulatum. Turn. Muse. Hib. p. 133. 



Mnium undulatum. Hedw Funck, Deutschl. Moose, t. 33. / 14. 



Mnium serpyllifolium. J. Linn. Sp. PI. p. 1578. Dill. Muse. t. 52. 

 f. 76. 



HAB. Moist banks and in woods, common. 



Stems creeping and branched beneath the surface of the 

 ground; branches erect, three or four inches in length, leafy; 

 the leaves very large towards the extremities of the plant. 

 The sterile plants are procumbent. It often happens that many 

 fruitstalks arise from the same point. 



23, B. rostratum; stems elongated, leaves broadly ovate reticu- 

 lated their margins thick obtuse denticulated the nerve reach- 

 ing a little beyond the point, capsule ovate pendulous, lid 

 rostrate. (TAB. XXX.) 



Bryum rostratum. Schrad. Spicil p. 72. Smith, FL Brit. p. 1369. 

 Engl Bot. t. 1475. Moug. et Nestl n. 419. Hook. Fl. Scot. P. II. 

 p. 151. Drummond, Muse. Scot. v. 2. n. 97. Arn. Disp. Muse. p. 45. 

 Bryum longirostrum. Brid. Meth. p. 119. 



Mnium rostratum. Schwaegr. Suppl. v. I. P. II. p. 136. t. 79. 

 Punch, Deutschl. Moose, t. 13. f. 15. Dill. Muse. t. 53. f. 80. 



HAB. Subalpine countries, Yorkshire. Rev. J. Dalton. 

 This species approaches most nearly to B. punctatum ; but 

 the whole plant is smaller, rarely exceeding an inch in height ; 

 the leaves are narrow and denticulate, of a softer texture, and 

 the nerve runs beyond the extremity of the leaf, so as to form 

 a short cuspidate point ; the lid, too, has a longer beak. Ca- 

 lyptra very pale coloured ; fruitstalks from one to five. 



24. B. marginatum ; stems elongated, leaves ovate acute reticu- 

 lated their margins thickened serrated nerve reaching a little 

 beyond the point, capsule ovate pendulous, lid shortly 

 rostrate. (TAB. XXXI.) 



Bryum marginatum. Dicks. PL Crypt. Fasc. 2. t. 5. f. 1. Turn. 

 Muse. Hib. p. 129. Smith, FL Brit. p. 1362. Engl. Bot. t. 1493. 

 Hook. FL Scot. P. II. p. 152. Drummond, Muse. Scot. v. 2. n. 98. 

 Arn. Disp. Muse. p. 44. 



Bryum serratum. Schrad. 



