148 THE NATURAL HISTORY OF AILSA CRAIG. 



{Oniscus asellus, L.) swarms under the stones on the upper beaches. 

 Mr. Scott's further records are — *Porcellio scaler, Latreille, * Cyclops 

 bisetosus, Rehberg, * Moraria Anderson- Smithi, T. and A. Scott, 

 * Alona rustica, T. Scott, and * Chydorus spharicus, Miiller. 



VEGETABILIA. 

 Phaenogamia and Filices. — On landing the flowers that first 

 attract our attention are the daisies (Bellis perennis). They are 

 exceedingly dwarfed and small. The prevailing flower is certainly 

 the sea bladder-campion {Silene maritimd), and we find it blooming 

 often in beautiful clumps all over the rock. The next one in 

 point of attraction is the "blue-bell of the woods" (Scilla nutans), 

 about the last place one would think of going to look for it. It is 

 not only abundant, but thrives well, some of the plants measuring 

 three feet in length. From the beach we detected patches of red 

 on the brae-face, and these turned out to be clumps of the red 

 campion (Lychnis diicrna). The common nettle (Urtica dioica) 

 is abundant everywhere, and the " sourock " (Rumex Acetosa) is 

 common in many parts. We only find five shore plants, and 

 this is astonishing on a maritime island, but is explained by the 

 fact that there is no habitat for more, there being neither mud, 

 sand, nor fine gravel. At the south end grows the tree-mallow 

 (Lavatera arborea) up among the cliffs, and we find it in abundance 

 and in beautiful flower. A number of elders (Sambucus nigra) 

 are seen in flower ; these form the only " forest " that the island 

 can boast of, and along with a few honey-suckles are the only 

 woody-stemmed plants we observe. Sixty-three species of plants 

 were noted (3rd June, 1893) belonging to fifty-seven genera, 

 the proportional number of genera to species being remarkable 

 (A. I. and B. XXVIII.) 



List of plants made on 3rd June, 1893, and on 24th May, 1900. 

 Fl. = plants in flower ; Fr. = plants in fruit. 



Ranunculus Flammula, Linn. — At Garry Loch. 



R. repens, Linn. — Fl. 



R. bulbosus, Linn. — Fl., above the shore-cliffs. 



Caltha palustris, Linn. — Fl. , at Garry Loch and on wet rock. 



Fumaria capreolata, Linn. — FL, scarce. 



Corydalis claviculata, DC. — FL, rare, cliffs south-east corner. 



Cardamine hirsuta, Linn. — FL, fr., scarce. 



Cochlearia officinalis, Linn. — FL, fr., common. 



Sisymbrium Thaliana, Hook. — Frequent on old gravel beach. 



