DIPLOPERISTOMI. 195 



II. Capsules smooth, (destitute of furrows.) 

 1. Teeth of the external peristome shorter than the interior ones. 



3. B. trichodes ; stems somewhat branched, leaves linear obtuse 

 entire reticulated, capsule obovate recurved subcernuous, 

 fruitstalks very long. (TAB. XXVIII.) 



Bryum trichodes. Linn. Sp. PL p. 1585. Dicks Smith, Fl. 



Brit. p. 1350. Engl Bot. t. 1517. Hook. FL Scot. P. II. p. 149. 

 Hobson, Brit. Mosses, v. 2. . 74. Drummond, Muse. Scot. v. 1. n. 98. 

 Am. Disp. Muse. p. 43. 



Meesia uliginosa. Hediu. St. Cr. v. 1. t. 1, 2. Moug. et Nestl. n. 

 727. Brid. Meth. p. 122. Funck, Deutschl. Moose, t. 28. / 1. 



Meesia minor. Brid. Funck, Deutschl. Moose, t. 28. / 2 Dill. 



Muse. t. 49. / 58. 



HAB. Highland mountains, in wet places. 

 Stems an inch or more in length. Leaves erecto-patent, 

 canaliculate; nerve strong, disappearing below the point; colour 

 a deep yellow-green, shining. This and the two following 

 species constitute the Hedwigian genus Meesia, characterised 

 by the short obtuse teeth of the peristome. 



4. B. triquetrum; stems elongated branched, leaves lanceolate 

 carinate acute serrated reticulated, capsule pyriform erecto- 

 cernuous, fruitstalks very long. (TAB. XXVIII.) 



Bryum triquetrum. Turn. Muse. Hib. p. 115. Engl. Bot. t. 2394. 

 Hook. Fl. Scot. P. II. p. 149. Am. Disp. Muse. p. 43. 

 Mnium triquetrum. Linn. Sp. PL p. 1578. 

 Meesia longiseta. Hedw. St. Cr. v. I. t. 22. 



Diplocomium longisetum. Web. et Mohr. Fl. Cr. Germ. p. 874. 

 Moug. et Nestl. n. 327. 



Diplocomium hexastichon, and D. tristichum. Funck, Deutschl. 

 Moose, t. 27. / 1 and 2. 



HAB. On the borders of some lake in the north of 



Ireland. Dr. Scott. 



The only station for this fine plant in the British dominions 

 is that very vague one given above. We have seen the soli- 

 tary specimen that has been communicated by Dr. Scott to Mr. 

 Turner. It is intermixed with B. dealbatum. The present 

 moss is remarkable for the great length of its fruitstalks, and 



for its broad, serrated, and carinated leaves, which are often 



N2 



