360 ISLAND LIFE 



extensive list of the species or forms which at present seem 

 to be peculiar. For the following list I am prmiarily in- 

 debted to Mr. Arthur Bennett of Croydon. Sir Joseph 

 Hooker has been so kind as to examme it carefully and to 

 give me his conclusions on the relative value of the differ- 

 ences of the several forms, and Mr. Baker, of Kew, has also 

 assisted with his extensive knowledge of British jDlants. 



List of Species, Sub-species, and Vapjeties of Flowering Plants 

 FOUND IN Great Britain or Ireland, but not at present known 

 IN Continental Europe. By Arthur Bennett, F.L.S. The 

 most distinct and best determined forms are marked with an 



asterisk. 



1. *Caltlia radicans (Forst.). "A much disputed species, or form of C. 



pal'ustrirs. It is a relativelj' rare plaut." (J. D. H.) "Certainly 

 distinct from the Scandinavian form." (Ar. Bennett.) 



2. *Arabis petrsea (Lam.) rar. grandifolia (Druce). -Scotch mountains. 



"The Larger flowers alone distinguish this." (J. D. H. ) 



3. Arabis ciliata (R. Br.). In Nj^man's ConsiJcctus Florcc Europcccc 



this species is given as found in England and Ireland only. 



' ' A very much disputed form of a plant of very wide distribution 

 in Europe and North America." (J. D. H.) 



4. Brassica monensis (Huds. ). " This and the continental B. cheiranthus 



(also found in Cornwall) are barely distinguishable from one 

 another." (J. D. H.) 



5. Diplotaxis muralis (D. C. ) var. Babingtonii (Syme), South of England. 



"A biennial or perennial form; considered to be a denizen by 

 Watson." (J. D. H.) 



6. "Helianthemum guttatum (Mill), var. Breweri (Planch). Anglesea. 



" Very doubtful local plant. H. quttatum (true) has lately been 

 found in the same locality." (J. D. H.) 



7. '"'Polygala vulgaris (L.), -yar. grandiflora (Bab). Sligo, Ireland. "A 



very distinct variety. " (J. D. H.) 



8. Viola lutea (Huds.), var. amoena (Symons»). " V. lutca itself is con- 



sidered to be a form of V. tricolor, and V. aiiKxnathe. better coloured 

 of the two forms of V. lutca." (J. D. H. ) 



9. *Cerastium arcticum (Lange), var. Edmonstonii (Beeby). Shetland Is. 



"But C. arcticum is referable to the very variable 0. alpimnu." (J. 

 D. H.) "Near to the European C. laf (folium." (Ar. Bennett.) 



10. *Geranium sanguineum (L.), var. Lancastriense (With.). Lancashire. 



"A prostrate local form growing out of its native soil in sand by the 

 sea. " (J. D. H. ) Mr. Bennett writes : " I have grown G. savfiui7icum 

 and its prostrate variety in sand, and neither became Lancastriense. " 



11. Genista tinctoria (L.), var. humifusa (Dickson). C^ornwall. "A 



decumbent hairy form confined to the Lizard." (J. D. H. ) 



12. Cytisus scoparius (Link.), ?wr. prostratus (Bailey). Cornwall. "A 



liro.strateform." (J. D. H.) 



13. Anthyllis vulncraria (L.), var. ovata (Bab.). Shetland Is. "A slight 



variety that Mr. Baker tells me reverted at once under cultivation." 

 (J. D. H.) 



14. *Trifolium repens (L.), var. Townsendii (Bab.). Scilly Isles. "A well- 



