5 
the rocks emerging from the sand on the north side of the 
Bay. Here are developed a series of rock pools that repay 
careful investigation. It is a difficult matter to give a 
list of available plants in the pools as they shew a regular 
procession of genera and species that varies throughout 
the cycle of the seasons. In the small pools one species 
may be dominant in March but completely absent at the 
end of May. The list provided includes species that may 
be found between February and July. 
Seaward of the pool area lies a fringe of Fucoid and 
Laminarian vegetation which, in late spring and early 
summer 1s very productive of interesting genera and 
species. 
The commonest algae obtainable from this area are :— 
CHLOROPHYCEAE 
Enteromorpha spp. 
Ulva spp. 
Monostroma spp. 
Cladophora spp. 
‘Codium tomentosum (Winter and Spring) 
Bryopsis (on the sides of deep pools usually about 6 inches below 
the surface). 
Uvospora 1sogona. 
Chaetomorpha spp. 
PAE OPH VCEAE. 
Laminaria saccharina 
L. digitata 
Fucus spiralis 
F. vesiculosus 
F. serratus 
A scophyllum nodosum 
Pelvetia canaliculata 
Desmavrestia aculeata (low water level) 
D. viridis (deep pools in Spring) 
Scytosiphon lomentarius 
A sperococcus fistulosus 
Sphacelaria cirrhosa 
Cladostephus spongiosus 
C. verticillatus 
Castagnea virescens (Summer only) 
Dictyosiphon foeniculaceus (Summer only) 
Chordania flagelliformis (Summer only) 
