ON THE FLORA OF NORTH-WESTEEN DONEGAL. 79 



district, and are at the same time good representatives of the type 

 to which they belong. 



On comparing tlie total number of species belonging to the 

 different types in the ' Cybele Hibernica ' and ' Cybele Britannica ' 

 with those given above, we find that the several elements of this 

 Flora may be arranged according to their importance in the follow- 

 ing order, viz. : — 



Scottish 27 out of a total of 66 Irish and 117 British. 

 Atlantic 14 ,, ,, 41 ,, „ 70 „ 



Highland 17 „ ,, 40 ,, ,, 113 



while the plants belonging to the English and Germanic types 

 form proportions comparatively unimj)ortant. 



We may give the following values to the above results : — Of the 

 Scottish, Atlantic, and Highland type plants (as given above) the 

 North-Donegal Flora contains about two-fifths respectively from 

 the entire number of each of those types to be met with in Ireland ; 

 while these quantities bear to the whole British Flora ratios which 

 give nearly one-fourth Scottish, one-fifth Atlantic, and one- 

 ninth Highland; so that Atlantic and Scotch plants are almost 

 equally represented, as regards the British Flora, with a slight 

 preponderance iu favour of the former. 



From the above it will be seen that the North Donegal Flora 

 mainly consists of species belonging to the British type ; next in 

 order come those belonging to the Scottish or Northern type ; next 

 the Atlantic, which form a fair proportion considering the latitude, 

 and testify to the mildness of the climate ; and last comes the 

 Highland group, which is far less numerous than might have been 

 expected from the northern j)osition and large extent of the 

 mountain districts. 



Among the most interesting additions to the Flora of Donegal 

 are Thalictrum alpirmm, Linaria rejjens, Oxyria reiiiformis, Euphorbia 

 amijgdaloides, and Ophioglossum lusitcmicum ; while the following are 

 now for the first time recorded as . occurring in District 11 of 

 Moore and More's ' Cybele Hibernica ' : — 



[Papaver Ehoeas.] Anthemis nobilis. 



|Lavatera arborea. |Lamium intermedium. 



*Geranium pyrenaicum. "^Plantago media. 



Ulex GaUii. Atriplex Babingtonii. 



tTrifolium filiforme. | Euphorbia exigua. 



Vicia angustifolia. Allium ursinum. 



Myriophyllum spicatum. Luzula pilosa. 



'''Sedum reflexum. 

 As Fanet forms a very natural and definite district, and the one 

 which I have most carefully explored, I have placed the letter F 

 after those plants which occur there. 



The signs used will be \ for plants which appear native, but 

 may possibly have been introduced at a remote period ; \ for 

 plants probably introduced, but where some doubt exists ; * for 

 plants certainly introduced, but which are now thoroughly 

 established beyond the influence of man ; [] for plants certainly 

 introduced and not thoroughly established. 



