182 DIPLOPERISTOMI. [Hypnum. 



52. H. triquetrum ; leaves squarrose cordate gradually acuminated 



plane serrated faintly striated, with two nerves at the base, 

 capsule globoso-ovate, lid conical. (TAB. XXVI.) 



Hypnum triquetrum. Linn. Sp. PL p. 1589. Turn. Muse. Hib. p. 

 186. Smith, Fl. Brit. p. 1325. Engl. Sot. t. 1622. Moug. et Nestl 

 n. 235. Funck, Deutschl Moose, t. 48. / 62. Schwaegr. Sujipl v. 1. 

 P. II. p. 80. End. Meth. p. 175. Hook. Fl. Seot. P. //. p. 146. 

 Hobson, Brit. Mosses, v. I. n. 90. Drummond, Muse. Scot. v. 1 n. 93. 

 Am. JDisp. Muse. p. 67 Dill. Muse. t. 38. / 28. 



HAB. Woods, abundant. 



Plant robust, from six to eight or ten inches long; stems 

 pinnate, much thickened at the extremity, the branches attenu- 

 ated and often rooting, a circumstance which does not occur in 

 the following H. brevirostre. 



53. H. brevirostre ; leaves squarrose broadly ovate concave with- 



out striae acuminated suddenly and with an evident contrac- 

 tion so as to terminate in a long narrow point serrated 

 faintly two-nerved at the base, capsule ovate, lid short 

 conical. (SUPPL. TAB. V.) 



Hypnum brevirostre. Ehrh. (not Engl. Bot.J Schwaegr. Suppl v. 

 1. P. II. p. 279. Brid. Meth. p. 175. Hook. Fl. Scot. P. II. p. 146. 

 Funck, Deutschl. Moose, t. 48. n. 61. Moug. et Nestl. n. 423. Hob- 

 son, Brit. Mosses, v. 2. TO. 70. Arn. Disp. Muse. p. 67. 



Hypnum triquetrum. 0. minus. Hooker and Tayl. Muse. Brit. p. 

 108. 



Hypnum erectum. Raddi. 



HAB. Woods, perhaps, not very rare. Near New Forest. 

 Mr. LyelL Manchester. Mr. Hobson. Devonshire. 

 Eev. W. T. Bree. Woods in Argyleshire. Captain 

 Carmichael. 



This is abundantly distinct from H. triquetrum, with which 

 we were disposed to unite it in the first edition of this work, 

 and certainly a very handsome plant. 



54. H. squarrosum ; leaves squarrose widely cordate very much 

 acuminated and recurved serrated faintly two-nerved at the 

 base, capsule ovato-globose cernuous, lid conical. (TAB. 

 XXVI.) 



Hypnum squarrosum. Linn. Sp. PL p. 1 593. Turn. Muse. Hib. 

 p. 184. Smith, Fl Brit. p. 1323. Engl Bot. t. 1593. Moug. et 

 Westl. n. 233. Funck, Deutschl. Moose, t. 48. / 63. Schwaegr. Suppl 



