124 ACOTYLEDONS. Musci. tiplctchnum. 



l.D.foliQsum,Hook.&Tayl.Musc.Brit.pA6.t.VU].BuxlaumJa 

 foliosa, E. B. t. 329. Phascum maximum, Lightf. p. C93. 



HAB. Among rocks in alpine situations. Lorn, Capt. Carntichacl. 



growing in dense patches. Stems short, scarcely any. Leaves minute, 

 ligulate, with a strong nerve. Those of the perichaetium large, erect, 

 membranous, nerved, lacerated, concealing the large oblique almost 

 sessile capsule. 



7. TETRAPHIS. 



Frullstalk terminal. Perislome single, consisting of four equidi- 

 stant upright teeth. Calyptra mitriform. Muse. Brit.pAti. t.\. 



1. T. pellucida, stems elongated, leaves ovato-acumiiiate those 

 of the perichtetium lanceolate, capsule cylindrical. Muse. Brit, 

 p. 16. /. 8. Bryum pellucidurn, Lightf. p. 724. 



HAB. On the ground, trunks of trees, posts, rails, &c. especially in 

 woods. 



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

 upwards those of the perichjetium ovate obtuse, capsule ovate. 

 Muse. Brit. p. 17. t. 8. 



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

 river in Fifeshire, Maugh. Arniston woods, Edinburgh 5 Kirkcaldy 

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

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

 Greville. 



8. SPLACHNUM. 



Fruilstalks terminal. Peristome single, of eight double teeth. 

 Capsule with an evident apophysis. Calyptra mitriform, with- 

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

 * Leaves acuminate. 



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

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

 Brit. p. 18. t. 9. Splacfinum vasculosum, Lightf'. p. 697. 



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



2. S. tenue, leaves ovato-acuminate serrated, apophysis obconi- 

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

 p. 19. *. 9. 



HAB. On the ground in the Highland mountains j 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. 20. t. 9. 



a. minuS) of a deeper colour with shorter stems. S.mnioidcs, 



Bedw'. 

 j3. majus, of a paler colour with elongated stems. S.fastigiatum, 



Dicks. 

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



Ben Lawers, abundant. 



4. . a?igustatum, leaves ovato-lanceolate much acuminated 

 serrated, apophysis obovate somewhat imnovver than the cap- 



