208 TRANSACTIONS OF THE [Sess. lxxviii. 



recorded from Orkney, references are given in the follow- 

 ing list, under each species and variety, to the books in 

 which the records have been published. These records 

 are principally contained in the Annual Reports of the 

 Botanical Exchange Club of the British Isles; "A New 

 List of the Flowering Plants and Ferns of Orkney," edited 

 by W. A. Irvine Fortescue, and published in " The Scottish 

 Naturalist," 1882-1884 ; and " Supplement to Topographical 

 Botany, ed. ii.," by Arthur Bennett, published in " The 

 Journal of Botany," 1905. 



The nomenclature followed is that of the second edition 

 of Watson's " Topographical Botany," except in the case of 

 species and varieties which are not recorded in that work. 

 In the latter case the nomenclature adopted is that of " The 

 London Catalogue of British Plants," tenth edition, 1908. 



Non-native plants, which have become naturalised in 

 Orkney, are distinguished by a * prefixed to the names, 

 and the names of casuals are printed in italics. 



Of the 31 species and varieties recorded from Orkney in 

 the following list, 27 are native, 1 is naturalised, and 3 are 

 mere casuals introduced into Orkney through the agency 

 of cultivation. 



Abbreviations. 



" Annals Scot. Nat. Hist." = The Annals of Scottish Natural History. 



Bennett, "Suppl. Top. Bot." = Supplement to H. C. Watson's Topo- 

 graphical Botany, second edition. By Arthur Bennett, 1905. 



"Bot. Exch. Club Report " = Report of The Botanical Exchange Club 

 of the British Isles, at present called The Botanical Exchange 

 Club and Society of the British Isles. 



" Journ. Bot." = The Journal of Botany. 



"Scot. Nat." = The Scottish Naturalist. 



Watson, "Top. Bot." = Topographical Botany. Second edition. By 

 H. C. Watson, 1883. 



COKRECTIONS. 



As " The Annals of Scottish Natural History " has 

 ceased to be published, I take this opportunity of correcting 

 two mistakes which occurred in my paper published in 

 that magazine in July 1895, viz. : — 



On page 176 for * Lupinus perennis, Linn., read 

 *Lupinus nootkatensis, Bonn. 



On page 179, after Pyrola rotundifolia, Linn., delete 

 " Rousay, A. R. Duguid ; and Rousay, 30th July 1881, 



