306 The Scottish Naturalist. 



The number of species and varieties that are admitted for the 

 county of Caithness is over 600, a fair number considering the 

 physical features of the county. Caithness has about 80 species 

 that have not yet been found in Sutherland, and about the same 

 number not yet found in the Orkneys. 



Our information is drawn from the following sources : 



Anderson's Guide. 



The Northern Flora, by Dr. A. Murray, 1836. 



Collectanea for the Flora of Moray (by Rev. George Gordon, 



LL.D.), 1839. 

 New Botanist's Guide, H. C. Watson, 1835-37. 

 Dr. Balfour, ex H. C. Watson. 

 Dr. R. Brown (Campster), ex H. C. Watson. 

 Dr. A. Davidson. 



Mr. R. Dick of Thurso. (Herbarium, &c). 

 Mr. Galloway of Thurso. 

 Mr. Nicolson of Wick. 

 Mr. Gray, fide Mr. Groves. 

 Mr. Hanbury, many specimens and notes. 

 Mr. G. Horn (Record Club Reports). 

 Mr. H. H. Johnstone, specimens. 

 Rev. W. R. Linton. 



Rev. E. S. Marshall, specimens and notes: 

 Rev. H. Fox. 



Mr. C. W. Peach, ex H. C. Watson's MSS. at Kew. 

 Mr. H. C. Watson's Catalogue in Kew Herbarium, &c. 

 Mr. Reeves and Dr. Ward. 

 Herr Stromfelt in introduction to "Additions to Icelandic Flora." 



References : 



Robert Dick, Transactions of Edin. Bot. Soc, July, 1854. 



Dr. Robert Brown (Campster), loc. cit. 



Arthur Bennett, Journal of Botany, 1882, pp. 114-117; 1884, 



pp. 50 and 253 ; 1886, p. 85. 

 Ar. ( Bennett, Scottish Naturalist, 18S5-6, pp. 26, 68, 180, 268, 279 



to 288, 309 to 319 ; Id., 1887, pp. 56-66. 

 W. Docherty, Meeting of Northern Scientific Societies at Banff, 



1883. 

 H. & J. Groves, Journal of Botany, 1883^ pp. 20-22; 1884, 



pp. 1-2 ; 1886, p. 3 ; 1887, p. 146 ; all for Characece. 



