126 TRANSACTIONS OF THE [Sess. lxxvii. 



Adelanthus decipiens (Hook.). Mitt. Corry gills. 



Scapania irrigua (Nees), Dum. Marshy ground. Corry- 

 gills shore. 



Madotheca laevigata (Schrad.), Dum. Corrie, West. 



Microlejeunea ulicina (Tayl.), Evans. On the bark of 

 birch trees, Sannox ; also Birks Glen. 



Ma/rchesinia Mackaii (Hook.), Gray. Corrie, West. 



Frullania fragilifolia, Tayl. On pitchstone rocks, on 

 the shore at Tormore. 



It will supplement in some respects the foregoing list if 

 I conclude my paper with some notes briefly describing the 

 phytogeography of the Corrygills shore and the sandhills 

 at Blackwater Foot, places to which particular attention 

 was devoted, and which consequently figure prominently 

 in the foregoing list. 



I may add that my attention has been mainly directed 

 to the littoral flora, which, in fact, offers more of interest 

 to the botanist than that of the mountains, for the lofty 

 granite massif in the north of the island, though attaining 

 an elevation of 2866 ft. in Goat Fell, has, as is generally 

 well known, a montane flora which is poor compared with 

 that of most Scotch mountains. 



The Corrygills shore forms part of what is known geologi- 

 cally as the 25-ft. raised beach. This raised beach can be 

 traced at various points on the coast of Arran, and can be well 

 seen between Brodick and Corrygills Point. The raised 

 beach here forms a narrow shelf or platform, often not more 

 than 100 to 200 yards wide, the result of the marine erosion 

 of sandstones and conglomerates of Triassic age. These sedi- 

 mentary rocks are frequently traversed by dykes of igneous 

 rocks, such as basalt, dolerite, pitchstone, etc. In a paper 

 of this character justice cannot be done to the botanical 

 interest of this ground ; but the varied nature of the plant 

 associations, and the occurrence in close association of 

 plants of very diverse types of distribution, may be best 

 illustrated by giving the following selection from a list of 

 plants noted by me in a short walk along the Corrygills 

 shore : — Cochlearia officinalis, Linn. ; Sagina nodosa, 

 Fenzl ; Spiraea Ulmaria, Linn. ; Geum rivale, Linn. ; 

 Comarum palustre, Linn. ; Parnassia palustris, Linn. ; 



