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THE INTERNATIONAL PHYTOGEOGRAPHICAL 
EXCURSION IN THE BRITISH ISLES. 
X. —Additional Floristic Notes. 
By G. Claridge Druce. 
(Oxford). 
T N the preceding chapters devoted to this subject, which have 
appeared in the New Phytologist, our foreign eonfreres have 
dealt with the salient features of our delightful excursion in a most 
interesting manner. In one of them (p. 55, 1912) Dr. Riibel, in his 
suggestive note on the Killarney vegetation, names the Violet we 
gathered there as V. silvestris var. pseudo- mirabilis, while Dr. 
Ostenfeld (p. 114) in a masterly manner gives details of some of the 
critical forms noticed on the expedition, and names some new forms 
for Britain. Dr. Graebner (p. 170) in his valuable paper mentions 
inter alia some of the plants which have become naturalised in 
Britain, while Professor Drude (p. 236) in his erudite and thoughtful 
“ Comparison of the Flora of Great Britain with that of Central 
