ACOTYLEDONS. Musci. Bryum. 149 



Div. I. Capsules sulcated (Mnium). 



1. Br. androgynum, stems nearly simple, leaves lanceolate ser- 

 rated their margins recurved, capsules nearly erect cylindrical 

 sulcated, lid conical. Muse. Brit. p.\\5. t. 28. Mnium an- 

 drog., Lightf. p. 707. 



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



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

 entire their margins revolute, capsules ovate oblique sulcated, 

 lid conical. Muse. Brit. p. 1 15. /. 28. Mnium palustre, 

 Light/, p. 70S. 



HAB.^Bogs. Pentland hills, &c., Mr. Gremlle. Appin, Capt. Car- 

 michael. 



Div. II. Capsules smooth (destitute 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. Miisc. Brit. p. \ 16. t. 28. 



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



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

 serrated at the points reticulated, capsules pyriform nearly 

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



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

 Mr. Winch. Guillon and Forfar Lochs, Mr. Arnott. 



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



one. 

 * Leaves subulate (Webera). 



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

 taceous flexuose serrated, nerve very broad, capsule pyriform 

 pendulous. Muse. Brit. p. 118. 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 j and there bearing fruit. 



** Leaves never subulate. 



f Leaves without any thickened margin. 



-f- 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. f. 28. 



HAB. Highlands, principally on the elevated mountains. 



