342 



ISLAND LIFE. 



[part II. 



5. Seligeria calcicola South of England. 



6. Pottia viridifolia South of England. 



7. Leptodontium recurvifolium ... Ireland and Scotland. 



8. Tortula woodii Ireland. 



9. „ hibernica Ireland. 



10. iStreptopogon gemmascens Sussex. 



11. Grimmia subsquarrosa North Britain. 



12. stirtoni North Britain. 



13. Glyphomitrium daviesii On basalt generally. 



14. Zygodon nowellii North Britain. 



15. Bryum barnesii North Britain. 



16. Hooheria laetevirens Ireland and Cornwall (also Madeira). 



17. Daltonia splachnoides Ireland. 



HlirATIC^. 



1. Gymnomitrium crenalatuin ... West England, Ireland. 



2. Eadula voluta Ireland and Wales. 



3. Acroholhus idlsoni Ireland. 



4. Lejeunia calyptrifoUa Cornwall, Lake district, Ireland. 



5. „ microscopica Ireland. 



6. Lophocolea spicata Ireland. 



7. Jungermannia cuneifolia Ireland. 



8. „ doniana Scotland. 



9. Petalophyllum ralfsii West Britain, Ireland. 



Many of the above are minute or obscure plants, and are 

 closely allied to other European species with which they may 

 have been confounded. We cannot therefore lay any stress on 

 these individually as being absent from the continent of Europe 

 so much of which is imperfectly explored, though it is probable 

 that some of them are really confined to Britain. But there are 

 a few — indicated by italics — which are in a very different 

 category ; for they belong to genera which are altogether un- 

 known in any other part of Europe, and their nearest allies are 

 to be found in the tropics or in the southern hemisphere. The 

 three non-European genera of mosses to which we refer all have 

 their maximum of development in the Andes, while the three 

 non-European Hepaticae appear to have their maximum in the 

 temperate regions of the southern hemisphere. Mr. Mitten 

 has kindly furnished me with the following particulars of the 

 distribution of these genera : — 



Streptopogon is a comparatively small genus, with seven species in the 

 Andes, one in the Himalayas, and three in the south temperate zone, besides 

 our English species. 



Daltonia is a large genus of inconspicuous mosses, having seventeen 

 epecies in the Andes, two in Brazil, two in Mexico, one in the Galapagos^, 



