MYSTERIOUS WESTERN PLANTS 173 
pretty Heaths (Erica vagans and E. ciliaris) are 
found, the latter spreading to Dorset. They occur in 
no other stations in the British Islands, and elsewhere 
only in the Pyrenean region. North Devon is the 
only home in Great Britain for the handsome Irish 
Spurge (Euphorbia hiberna), which in Ireland is dis- 
tributed along the west and south coasts, being very 
abundant in Kerry. Outside the British Isles it also 
is confined to the Pyrenean area. Crossing into Ire- 
land, we find along the south and west coasts no less 
than seven plants unknown in Great Britain, and else- 
where found only or mainly in the Pyrenees. Of 
these, three Heaths (Erica mediterranea, E. Mackay, 
Dabecia polifolia) are confined to Connemara and 
the Pyrenees; two Saxifrages, the London Pride 
(S. wmbrosa) and the Kidney-leaved (S. Geum), with 
their Irish headquarters in Kerry, are likewise con- 
fined to the Pyrenean region. The beautiful 
Large-flowered Butterwort (Pinguicula grandiflora, 
Fig. 28), abundant in parts of Kerry and Cork, 
grows in South-west Europe and the Alps; while 
the Strawberry-tree (Arbutus Unedo, Fig. 29), 
so pleasing and unique a feature of the Kil- 
larney woods, ranges all along the Mediterranean. 
A little Orchid, Neotinea intacta, found on limy 
soils in Galway and the adjoining counties, and a 
Grass (Schlerochloa festuciformis) which occurs on 
sheltered shores on both the east and west sides of 
Ireland, are likewise confined elsewhere to the 
Mediterranean region. So it will be seen that along 
the south-western and western borders of the British 
Isles there is scattered a well-marked group of plants 
belonging to the Pyrenean and Mediterranean floras, 
