ACOTVLEDONS. — Musci. Phascttm. 121 



2. A. uipestris, stems branched, leaves ovate gradually acumi- 

 nated, the upper ones falcate. Muse. Brit. p. 2. t. S., Jan- 

 gerynannia rupestris, Lightf. p. l"^! . 



Hab. Rocky mountains, not unfrequent. 



** Leaves furnished ivith a nerve. 



3. A. Rothii, stems almost simple, leaves lanceolato-subulate 

 falcato-secund fragile, perichsetial ones oblong nerveless their 

 margins involute. Muse. Bril. p. 2. t. 8. 



Hab. Alpine rocks, not rare. 



4. A. nivalis, stems slightly branched, leaves loosely imbricated 

 lanceolate subfalcate secund, peiichaetial ones similar to the 

 cauline ones. Muse. Brit, p. 2. /. S. 



Hab. Rocks upon the highest summit of Ben Nevis, on the eastern 

 side. Hook. 



2. SPHAGNUM, 



Receptacle pedunculated, its peduncle resembling a fruitstilk. 

 (Japsule sessile, entire, its lid deciduous, its mouth naked. 

 Cahjptra irregularly torn. Miisc. Brit, t, 1. 



1. S. o^/2^5J/b/«/m, branches tumid, leaves ovate obtuse. Muse, 

 Brit. p. 3. t. 4. 



Hab. Bogs, common. 



2. S. squarrosinn, branches attenuated at their extremities, leaves 

 ovato-acuminated squarrose recurved. Muse. Brit. p. 4. t. 4. 



Hab. Arlary, Mr. Jrnotf, in fr. Ravelrig-toll, and near N. QueenS- 

 ferry, Mr. Grevllle. Marshes, near Glasgovi', D. Don. 



3. S. acutifolium, branches attenuated, leaves ovato-lanccolate 

 crowded. Muse. Brit. p. 4. t. A, • 



Hab. Bogs, plentiful. 



4. S. cuspidatnm, branches attenuated, leaves lanceolato-subu- 

 late lax Muse. Brit. p. A. t. 4. 



Hab. Grovi'ing in the water in boggy places. 



3. PHASCUM. 

 Fruitstcdks te\-m]nci\. Z,if;?persistent. Ca/?/p/ra dimidiate. Muse, 

 Brit.t.l. 



* Shoots creeping; lecifless, articulated, branched. 



1. Vh.serratum, shoots branched conferva-like, perichsetial leaves 

 lanceolate serrated nerveless. Muse. Brit. p. 5. f. 5. 



Hab. Wall top, opposite Blair Adam, Kinross-shire, Mr. Arnott. 

 Pastm-es, Angus-shire, and marshes on Braid hills, G. Do)(. 



** Creeping shoots none. 

 f Leaves more or less subulate. 



2. Ph. friipz^m, leaves lanceolato-subulate flexuose crisped when 

 dry. Hook. & Taijl. Muse. Brit. p.6. t. 5. 



Hab. Scotland, G. Don. Caroline park, on the ground, Mr. Arnott. 



3. Ph. subiilattirHf lej^ves subqlato-sctuccous straight their nerve 



