ON THE FLORA OF INNISHOWEN, CO. DONEGAL. 79 
With regard to panne pnts, Innishowen enters into closer 
competition with the untains eastward, three species oc- 
curring which are S cakuoee in ae north-east of calaiaier These 
are Saussurea alpina, Polygonum viviparum, and Car The 
eee flora of Innishowen is almost eat to that of I jeg Antrim 
Down together, so far as they are yet made known, although 
those counties contain several mountain groups and the highest 
summits in the north of Ireland. When we consider the size of 
Innishowen, this is equivalent to a decided increase. The alpine 
flora of Donegal is superior to that of the north-east district in 
ere. 
Northern and perce gay would perhaps have been expected 
to increase in the more western and northern districts, but this is. 
b ase, Pissns two, Trollius europeus and 
Potamogeton filiformis, which have not been found in Innishowen, 
all the northern species occurring in Done egal and many more are 
pes in the north-east, where this group is best developed in 
eland. 
With regard to Atlantic or Western plants, this type is poorly 
represented in the north of Ireland; it is, moreover, quite 
two others, Statice occidentalis and Adiantum Capillus-veneris, each 
occur in a single rier | "3 ci west of Donegal. In opposition to 
this there are, accordin he ‘ Cybele Hibernica,’ eight Atlantic 
species in the north- ae district which I have not found in Donegal. 
This group of plants increases southwards on both coasts of Ireland, 
but more rapidly on the east ; ae attains its maximum, I believe, 
in the south-east corner of Trela 
In conclusion, the flora of tanishowsi will be found to contain 
slightly above five hundred species; about half the Irish flora, and 
five- sixths of the flora of Donegal. Thirty species at least ae 
lying north of Culdaff and Malin estuaries—is a well-defined 
peninsula, rising north of a ie neck of land, at once, to a low 
mountainous country and from the most northern point of Salers 
A rise in the sea-level of about four or five feet would ger 
Culdaff estuary on the east with Malin estuary on the west, and 
transform Malin to an island. There is little Peer beaes on 
Malin «46 3 x 
