184 TJi^ Irish Naturalist. October, 
mower had passed over it. This Rabbit-work gives a 
great opportunity to species which are not eaten by that 
voracious quadruped. Hence the thickets of weeds just 
mentioned ; and hence also the remarkable development 
of certain smaller species. Potentilla Anserina, for instance, 
occupies whole fields, with a dense undergrowth of Sagina 
procumbens ; Carex arenaria, which is found all over the 
island in spite of a complete absence of sand, often forms 
patches half an acre in extent, to the exclusion of almost 
every other plant. Er odium maritimum, also, which is 
immensely abundant all over the island, occupies certain 
areas exclusively. The only place where anything approach- 
ing sand is found is at the stony hook-shaped point inside 
of the curved boulder-shoal known as " The Ring." Here 
much comminuted shell-material occurs. It is colonized 
by a dense growth of Cochlearia danica and Erodium mari- 
timum, with A triplex sp. and Matricaria inodora. 
There are several springs on the island, which here and 
there form pools ; but these are so much frequented by 
gulls that vegetation in them is almost nil. The marsh - 
plants occur mostly in ditches by which the water from 
the springs soaks down towards the sea. 
Hart's list of the flora, as already stated, numbers 153 
species. Fourteen of these, listed below, he noted only 
from the Lesser Saltee ; five of them (marked G), I saw 
on the Great Saltee : — 
Medicago lupulina. 
G Juncus Gerardi. 
Spergularia media. 
G Carex arenaria. 
Oenanthe crocata. 
C. extensa. 
Petasites vulgaris. 
G Aira caryophyllea. 
Leontodon hirtus. 
Agropyron repens. 
Samolus Valerandi. 
Glyceria maritima. 
Polygonum aviculare. 
Equisetum maximum. 
I shall now Hst the whole flora (Phanerogamia and alHes) 
of the Great Saltee as at present known, postponing the 
question of their standing as natives or otherwise, but 
adding by means of famihar contractions (1 = local) their 
