122 ACOTYLEDONS. Musci. Gymnostomum. 



.disappearing below the point. Hook. & Tayl. Muse. Brit, 

 p. 6. t.5. Light/, p. 694. 

 HAB. Dry banks. 



4. Ph. axillare, leaves lanceolate-subulate straight their nerve 

 disappearing below the point, fruit at length lateral. Muse, 

 Brit. p. "J. t,5. 



HAB. Banks, Angus-shire, G. Don. 



ft Leaves more or less ovate. 

 (Fruitstalk entirely immersed among the leaves) 



5. Ph. muticunij leaves ovato-rotundate acuminate concave con- 

 nivent, the nerve reaching to the point. Muse. Brit. p. 7. t.5. 



HAB. Banks, not uncommon. 



6. Ph. cuspidal2im Reaves ovato-acuminate erect their nerve reach- 

 ing to the point. Muse. Brit. p. 8, t. 5. Phascum acaulon, 

 Lightf.p.693. 



P. piiiferum, leaves hair-pointed. 



HAB. Sandy fields,, common. /3. King's Park, Edinb., G. Don. Ar- 

 thur's Seat, common, Mr. Greville. 



4. GYMNOSTOMUM. 



Fruitstalks terminal. Mouth of the capsule naked. Catyptra 

 dimidiate. Muse. Brit. t. 1 . 



* Stem elongated, branched. 



1. G. lapponicum, leaves linear-lanceolate crisped when dry, 

 the parichaetial ones broadly ovate their margins involute, cap- 

 sule turbinate striated. Muse. Brit. p. 10. t. 6. 



HAB. Summits of Clova, G. Don. Mountains E. of Ben Voirlich, 

 Mr. Arnott. 



2. G. cestivum, leaves lanceolate twisted when dry, the peri- 

 chastial ones broadly ovate their margins involute, capsule ob- 

 long smooth. Muse. Brit. p. 10. t. 6. 



HAB. Wet rocks, not uncommon. 



3. G. idridissimum, leaves broadly lanceolate, capsule ovate, 

 lid obliquely rostrate. Muse. Brit. p. 10. I. 6. 



HAB. Inch Keith, jD. Don. 



4. G. curvirostrum, leaves subulate, capsule turbinate ovate, 

 lid obliquely rostrate. Muse. Brit. p. 11. 2.6. 



HAB. Moist rocks, not rare. 



** Stems short, simple. 



5. G. ovatum, leaves ovate erect concave piliferous their nerve 

 furnished with a granuliferous membrane, lid rostrate. Muse, 

 Brit. p. 11. t.l. 



HAB. Banks and walls. Dumbarton and Angus-shire, D, Don. Very 



common, Mr. Greville. T 

 6* G, truncatulum, leaves ovate apiculate patent nearly plane, 



