102 THE VOYAGE OF H.M.S. CHALLENGER. 



Dicranella condensata, J. Angstr. 



Dieranella condensata, J. Angstr., in Hedwigia, 1875, p. 92. 



St Helena. 



The description of this seems to indicate Dicranella ascensionica, Mitt. ; but this 

 species is absent in all our collections from St Helena. 



Carnpylopus introflexus, Hedw. 



Campylopus introflexus, Hedw., Sp. Muse, t. 20 (Dicranum) ; Mitt, in Melliss's St Hel., p. 358. 



St Helena. — Damp banks on the high land — Burchell ; Melliss. 

 A common moss both in the northern and southern hemispheres. 



Campylopus helenicus, C. Mull. 



Campylopus helenicus, C. Mull, Synop. Muse. Frond., ii. p. 599 {Dicranum) ; Mitt, in Melliss's St 

 Hel., p. 358. 



St Helena. — Endemic. 

 . One of the commoner species, figuring in every collection. 



Campylopus scabricuspis, Mitt. 



Campylopus scabricuspis, Mitt, in Melliss's St Hel., p. 358. 

 St Helena. — Endemic. Damp roadside banks on the high land — Melliss. 



Glyphomitrium helenicum, Mitt. 



Ghjphomitrium helenicum, Mitt, in Melliss's St Hel., p. 359. 



St Helena. — Endemic. 



Only collected by Captain Haiighton. 



Ceratodon purpureus, Linn. 



Ceratodon purpureus, Linn. (Mnium) ; C. Mull., Synop. Muse. Frond., i. p. 646 ; Melliss, St Hel. 

 p. 359. 



St Helena. Damp banks on the high land — Burchell ; Melliss. 



The most widely diffused of all mosses. 



Tortula crispula, Bruch. 



Tortula crisjmla, Bruch. (Trichostomum) ; C. Mull., Synop. Muse. Frond., i. p. 571 ; Melliss, St Hel., 

 p. 360. 



St Helena. — Indigenous ? Old walls and stones in the high land — Melliss. 



Europe ; North Africa. 



