Proc. lloii. Sue (J. of Edin.] 



[Vol. XXX. 



Fig. 119. — Isle of May, View from near the same place as fig. 118, but looking 

 in a westerly direction towards the higher portion of the island. The zone of 

 rock that produces nothing but lichens lies between this spot and high- 

 water mark. In the foreground of the present view is seen the vanguard of 

 the phanerogamic vegetation, dwarf tussocks of Armeria maritima having 

 obtained a hold in the interstices of the lichen-covered rocks. 



Fig. 120.— Isle of May. Nearer view of the lichens mentioned under fig. 118. 

 They are as follows : — Lecanora parella, Physcia parietina, P. aquila, and 

 Ramaliua scopulorum. 



Mr George West. 



[Plate 60. — ■llcfcvrcO. to on page 175. 



