134 ACOTYLEDONS. Musci. Triehostomum. 



21. D.varium, stems short, leaves narrow hastato-lanceolate, cap- 

 sule ovate, lid rostrate. Muse. Brit. p. 58. t. 17. 



a. viride, leaves pointing in all directions lanceolate green, cap- 

 sules snbcernuous. D. varium, Heduu. 



{$. rufescens, leaves subsecund lanccolato-subulate reddish, cap- 

 sules erect, D. rufescens, Turn. 



HAB. Moist banks and moors. 



22. D. heteromallum, steins branched, leaves subulate falcato- 

 secund nearly entire, capsule ovate subcernuous, lid with a 

 long beak. Muse. Brit. p. 59. /. 18. Bryum keteromallum, 

 Lightf. p. 726. 



HAB. Moist banks. 



18. TRICHOSTOMUM. 



Fruit stalks terminal. Peristome of 16 equal teeth divided to 

 the base, or 32 placed together in pairs. Calyptra mitriform. 

 Muse. Brit. p. 59. t. 2. 



* Fruitstalks curved. 



1. Tr. patens, stems elongated, leaves lanceolate acuminate ca- 

 rinated their margins recurved, capsule ovate sulcaterl, fruit- 

 stalks curved, lid conical. Muse. Brit. p. 60. t. 19 (excluding 

 the Syn. of Tr. funale Sc/iwcpgr.). 



)8. With long diaphanous hair-like points. Tr. funale, Schwcegr. 

 HAB. Highland mountains. /3. Upon Trap rock on a hill side, Lorn, 

 Capt. Carmichael. 



** Fruitstalks straight. 



f Leaves with diaphanous points. 



2. Tr. lanuginosum , stems elongated subpinnate, leaves lanceo- 

 lato-subulate acuminate, their long diaphanous points serrated 

 margins recurved, capsules ovate, fruitstalks short on lateral 

 branches, lid rostrate. Muse. Brit. p. 60. .19. Bryum hyp- 

 noides, Lightf. p. 7 32. 



HAB. Mountains, abundant. 



3. Tr. canescens, stems elongated irregularly branched, leaves 

 ovato-lanceolate, their diaphanous acuminated points slightly 

 serrated, capsule ovate, teeth of the peristome very long and 

 filiform, lid subulate. Muse. Brit. p. 61. t. 19. 



HAB. Heaths and mountainous plains. 



4. Tr. heterostichum, stems elongated branched, leaves ovato- 

 lanceolate, their diaphanous acuminated points slightly ser- 

 rated, capsule oblong, teeth of the peiistome rather short, lid 

 rostrate. Muse. Brit. p. 61. t. 19. 



HAB. Stones in mountainous districts. 



5. Tr. microcarpon, stems elongated branched, leaves Janceolate 

 their diaphanous acuminated points slightly serrated, capsule 

 oblong, teeth of the peristome rather short, lid rostrate. Muse. 

 J8rit.p.6\. I. 19. 



