162 D I P L O P E R I S T O M I. [Hypnum. 



Hypnum murale. Hediv. St. Or. v. 4. t. 30. Dicks. Turn. Muse. 

 Hib. p. 166. Moug. et Nestl. n. 145. Smith, Fl. Brit. p. 1304. 

 Hook. Fl. Scot. P. II. p. 143. Hobson, Brit. Mosses, v. 1. n. 12. 

 Funck, Deutschl. Moose, t. 38. /. 7. Am. Disp. Muse. p. 60. Brid. 

 Meth. p. 168. Schwaegr. Suppl. v. L P. II. p. 198. 



Hypnum confertum. Engl Bot. t. 1038. 



Hypnum abbreviatum. Hedw. Sp. Muse. t. 65. f. 1 4. Dill. 

 Muse. *.-41./. 52. 



HAB. On walls and stones. 



The rostrate lid and concave shortly-pointed leaves well 

 distinguish this species from its affinities. 



18. H. purum ; leaves closely imbricated oval with a ver/ short 

 point very concave their nerve reaching half way up, cap- 

 sule ovate cernuous, lid conical. (TAB. XXIV.) 



Hypnum purum. Linn. Sp. PL p. 1594. Hedw. Sp. Muse. t. 



66. /. 36. Turn. Muse. Hib. p. 175. Smith, Fl. Brit. p. 1313. 



Engl Bot. t. 1599. Moug. et Nestl n. 44. Hook. Fl. Scot. P. II. p. 



143. Hobson, Brit. Mosses, v. 1. n. 74. Drummond, Muse. Scot. v. 1. 



n. 83. Funck, Deutschl. Moose, t. 43. / 19. Brid^^Meth. p. 160. 



Schwaegr. Suppl v. 1. P. II. p. 126. Am. Disp. Muse. p. 60. 



Hypnum illecebrum. Smith, Fl. Brit, and Engl. Bot. t. 2189. (not 



of Hedw. J Dill. Muse. t. 40. / 45. 



HAB. On the ground, on banks, and in woods, abundant. 



The less regularly pinnate state of this moss has been taken 

 by English authors for the H. illecebrum of Hedwig, an Ameri- 

 can plant, and a distinct species ; having leaves with more 

 acuminated and serrated points, and with a longer and more 

 decided nerve.* 



Dillenius informs us that the specific name of this moss is 

 derived from the habit which prevails in some parts of England, 

 of using it to cleanse the worms for fishermen. 



f f Leaves lanceolate, or subulate. 

 4- Leaves without strice. 



19. H.plumosum; leaves erecto-patent the upper ones sometimes 



* Mr. Arnott has recently informed us that the H. illecebrum of Hedwig, 

 Sp. Muse. t. 25. /. 7. has been found in Scotland ; but we have seen no 

 specimens. 



