124 ACOTYLEDONs. — Musci. Splacknum. 



\ .D .Jhliosiim, Honk.k Ta7jLMusc. Brii p. 16 t.WU. Buxhaumia 

 foliosa, E. B. t. 329. Pkascam maximum, Lig/iff. p. C93. 



Hab. Among rocks in alpine situations. Lorn, Ccipt. Curinichael. 



Growing in dense patches. .S7e»/,9 short, scarcely any. Leaces minute, 

 ligulate, with a strong nerve. Those of the perichcetiumXixxge, erect, 

 meml)ranous, nerved, lacerated, concealing the large oblique almost 

 sessile capsule. 



7. TETRAPIIIS. 



Fru'ilstalk terminal. Peristome single, consisting of four equidi- 

 stant upright teeth. C(//yp//a mitriform. Mine. Brit.pAQ. t.\, 



1. T. pellticidn, stems elongated, leaves ovato-acuminate those 

 of the perichictiuui lanceolate, capsule cylindrical. Miisc. Brit, 

 p. 16. /. 8. Bryum pcllucidum, Light/', p. 724. 



Hab. On the ground, trunks of trees, posts, rails, ike. especially in 

 woods. 



2.T. ovata, stems very short, leaves few linear slightly incrassated 

 upwards those of the perichaetium ovate obtuse, capsule ovate. 

 Mjtsc. Brit. p. 17. /. S. 



Hab. On sandstone rocks by the side of the Black Devon, a small 

 river in Fifeshire, Maugh. Arniston woods, Edinburgh j Kirkcaldy 

 Den, and under a waterfall at Killside, Fifeshire, Mr. Jrnutt. Fall 

 of the Aray, Mr. Borrer. Auchindenny woods^ abundant, Mr. 

 Greville. 



8. SPLACHNUM. 



Frtiitstalks terminal. Ptristome single, of eight double teeth. 

 Capsule with an evident apophysis. Calyptra niitrifonuj with- 

 out furrows. Muse. Brit. p. 18. t. 1. 

 * Leaves acuni'inate. 



1. S, sphcericum, leaves ovato^rotundate acuminate slightly ser- 

 rated, apophysis ovato-globose wider than the capsule. Muse. 

 Brit. p. 18. t. 9. Splacknum vasculosuiv. Light/, p. 697. 



Hab. Dung of various animals, especially in mountainous situations. 



2. S. teuue, leaves ovato-acurniuate serrated, apophysis obconi- 

 cal narrower than the capsule, columella exserted. Muse. Brit, 

 p. 19. /. 9. 



Hab. On the ground in the Highland mountains ; never on dung. 



3. S, mnioides, leaves ovato-lanceolate much acuminated con- 

 cave entire, apophysis obovate nearly as narrow as the capsule. 

 Muse. Brit. p.'Ii). t. 9. 



a. minus^ of a deeper colour with shorter stems. S.mnioides, 



Hediv. 

 j6. vinjus, of a paler colour with elongated stems. S. fasti gi alum, 



Dieks. 

 Hab. On the ground in the Highland mountains, not uncommon. 



Ben Lawers, abundant. 



4. S. augustatum, leaves ovato-lanceolate much acuminated 

 {. serrated, apophysis obovate somewhat narrower than the cap- 



