142 ACOTYLEDONS. Musci. Hypnum* 



Div. II. Stems (taken in conjunction with the leaves] more of 

 less cylindrical, never plane. 



SECT. I. Leaves spreading on all sides of the stem*. 



A. Leaves uniform in their direction (not squarrose}. 



a. Nerve reaching to or beyond the point. 



* Leaves without serratures. 



6. H. medium., leaves ovate obtuse concave entire, nerve reaching 

 to the summit, capsule cylindrical nearly erect, lid conical. 

 Muse. Brit. p. 93. /.24. 



HAB. Stumps of trees, &c., by the banks of rivers. 



7. H. te?iellum, leaves fasciculate erect lanceolate-subulate entire 

 their nerve reaching to the summit; capsules ovate cernuous, 

 lid rostrate. Muse. Brit. p. 93. t. 24. 



HAB. Rocks and walls. Cave near Kirkcaldy, and Den of Dupplin, 

 Mr. Arnott. Craig Lochart, near Edinb., Mr. Greville. 



8. H. serpens, leaves ovato-lanceolate rather obtuse patent en- 

 tire their nerve for the most part reaching to the summit 

 (sometimes obsolete), capsule cylindrical curved cernuous, lid 

 conical. Muse. Brit, p.' 94. t. 24. Lightf. p. 763. 



HAB. Moist banks, trunks of trees, on pales and decayed wood in va- 

 rious situations. 



*'* Leaves serrated. 



9. H. populeum, leaves lanceolate acuminated serrated the mar- 

 gin slightly reflexed, nerve reaching to the point, capsule ovate 

 nearly erect, fruit&talks rough, lid conical. Muse. Brit. p. 94, 

 /. 24. 



HAB. Trees and rocks. Slateford, near Edinburgh, Mr. Arnott. Ben 

 Lawers, Clova, &c., G. Don. 



10. H. rejlexum, leaves cordato-acuminate serrated their nerve 

 reaching to the point their margin slightly reflexed, capsule 

 ovate cernuous, fruitstalks rough, lid conical. Muse. Brit, 

 p. 95. /. 24. 



HAB. On the ground, Ben Nevis, near the base of the mountain. 



b. Nerves shorter than the leaf, or none. 



* Leaves entire. 

 t Leaves ovate or elliptical. 



11. H. molle, leaves loosely imbricated rotundato- ovate obtuse 

 concave entire faintly two-nerved at the base or with one short 

 nerve, capsule ovate'cernuous, lid conical. Muse. Brit. p. 95". 

 t. 24. 



HAB. Alpine rivulets, Dickson, Hook. In Angus-, Aberdeen-, and In- 

 verness-shires, G. Don. Argyleshire, Capt. Carmichael. 



a In opposition to " leaves secund." 



