TRANSACTIONiS 



BOTANICAL SOCIETY OF EDINBURGH. 



SESSION LXXXV 



Additions to the Flora of Orkney, as recorded in 

 Watson's " Topographical Botany," Second Edition 

 (1883). By Colonel H. H. Johnston, C.B., C.B.E., 

 D.Sc, F.R.S.E., F.L.S. 



(Read 17th March 1921.) 



This paper forms a continuation of three papers on the 

 same subject, one of whicli I read before the Scottish 

 Natural History Society on 4th April 1895, and which was 

 published in " The Annals of Scottish Natural History," 

 July 1895, and the other two before the Botanical Society 

 of Edinburgh on 15th January 1914 and 10th June 1920, 

 and which were published in the Society's ''Transactions," 

 vol. xxvi, pp. 207-217 (1914), and vol. xxviii, pp. 23-42 

 (1920), respectively. Most of the plants mentioned in this 

 paper were collected by me during the year 1920. 



Before and after the publication of the second edition of 

 Watson's "Topographical Botany," in 1883, several of the 

 plants mentioned in the following list have been recorded 

 from Orkney by me and other botanists ; but, as the value 

 of botanical records is greatly enhanced by the possession 

 of authentic specimens, I have included in this list the 

 names of all specimens in m}^ herbarium, which are either 

 additional to or confirm doubtful records of the plants 

 recorded from County No. Ill Orkney in the second 

 edition of the above-mentioned book. 



TRANS. BOX. SOC. EDIN. VOL. XXVIH. 5 



