316 Mr. W. Mitten on the Mosses and Hepatica of Sussex. 



66. B. cuneifolia (Dicks.). 



Tortula cuneifolia. Turn. Eng. Fl. 

 Tunbridge Wells, " on sandy banks and elsewhere," Forster. Bo- 

 peep, near Hastings, Mr. Jenner ; also between Hastings and Win- 

 chelsea under the low cliffs ; and on a moist sandy bank at Skeims 

 Hill. 



67. B. subulata, Hedw. 



Tortula subulata, Hedw. Eng. Fl. 

 Common on banks. 



68. B. latifolia, B. et S. 



Frequent on trees and posts subject to inundation ; not often pro- 

 ducing fruit. 



69. B. papulosa, Wils. 



Tortula papulosa, Wils. MSS., Spruce in Lond. Joum. Bot. 



Frequent on trees and fences, rarely on tiles. 



The leaves of this species are not always gemmiferous, and its 

 habit is altogether that of the SyntrichicB : no trace of inflorescence 

 has been seen. 



70. B. lavipila, Schw. 



Tortula ruralis, /3. Icevipila, Eng. Fl. 

 Abundant on trees. 



71. B. ruralis, Hedw. 



Tortula ruralis, Sw. Eng. Fl. 

 Very common on roofs ; on the ground ; rarely on trees. When 

 growing on roofs this moss is usually of a brown colour, but when on 

 the earth in sandy or chalky places it becomes of a fine yellow, and 

 the lower portions ferruginous : this state is rarely fertile. 



Genus 5. Ceratodon, Brid. 



73. C. purpureus (L.), Brid. 



Didymodon purpureus, Hook, and Tayl. Eng. Fl. 



Genus 6. Weissia. 

 73. W. crispa (Hedw.), Mitten. 



Phascum crispum, Hedw. Eng. Fl. 

 Astomum crispum, Bryol. Europ. 



Common on the Downs. 



When growing in tufts, as is most usual with this species, the 

 leaves on the lower parts of the stems are not divergent ; but when 

 the plants grow singly, as sometimes they may be found amongst 

 grass, the leaves are all divergent, and the plants have a very different 

 look, and resemble very closely, except in colour, the next species. 



