ACOTYLEDONS.— -Musci. Bryum, 149 



Div. I. Capsules sulcaied (Mnium). 



1 . Br. androgynwn^ stems nearly simple, leaves lanceolate ser- 

 rated their margins recurved, capsules nearly erect cylindrical 

 sulcated, lid conical. Muse. Brit. p. 1 15. L 28. Mnium an- 

 drog.y Lig/ilf. p. 707. 



Hab. Woods and on banks, Appin, Capt. Carmichael. 



2. Br. palustre, stems much branched, leaves lanceolate obtuse 

 entire their margins revolute, capsules ovate oblique sulcated, 

 lid conical. Muse. Brit. p. 115. t. 28. Mnium palustre, 

 Light/, p. 708. 



Hab. Bogs. Pentland hills, &c., Mr. Grevllle. Appin, Capt. Car- 

 michael. 



Div. II. Capsules smooth {destiiute of furrows). 



Sect. I. Teeth of the external peristome shorter than the 

 inner one (Meesia) . 



3. Br. trichodes, stems somewhat branched, leaves linear obtuse 

 entire reticulated, capsule ovate recurved subcernuous, fruit- 

 stalk very long. Muse, Brit. p. 116. (. 2S. 



Hab. Highland mountains, in wet places. Bogs, &c. 



4. Br. dealbatum, stems short, leaves lanceolate acute plane 

 serrated at the points reticulated, capsules pyriform nearly 

 erect. Muse. Brit. p.\\7. t.28. 



Hab, Boggy mountains. Near Edinb., &c., G. Don. Ben Lawers, 

 Mr. fVinch. Guillon and Forfar Lochs, Mr. Arnolt. 



Sect. II. Teeth of the exterior peristome as long as the interior 



one. 



* Leaves subulate (Wehera.) . 



5. Br. pyriforme, stems slightly branched, leaves subulate-se- 

 taceous flexuose serrated, nerve very broad, capsule pyriform 

 pendulous. Muse. Brit. p. 1 18. t. 28. 



Hab. Rocks, especially of sand or any soft stone. Dry Muir, on the 

 Pentlands ; also Ardvoirlich, near Loch Earn, Mr. Arnott. Fis- 

 sures of rocks, Lismore, Capt. Carmichael. On the outsides of the 

 garden pots, that are partly plunged in the water, in the hot-houses 

 in the botanic garden at Glasgow ; and there bearing fruit. 



** Leaves never subulate. 



t Leaves without any thickened margin, 



+- Leaves very obtuse. 



6. Br. julaceum, stems branched, leaves closely imbricated 

 broadly ovate concave entire obtuse, nerve running nearly to a 

 point, capsule obovato-cylindraceous, pendulous. Muse. Brit. 

 p. 118. /. 28. 



Hab. Highlands^ principally on the elevated mountiiins. 



