240 ANNALS OF SCOTTISH NATURAL HISTORY 



CONTRIBUTIONS TOWARDS A FLORA OF THE 

 OUTER HEBRIDES. No. 2. 1 



By ARTHUR BENNETT, F.L.S. 



SINCE my first notes on the flora of these islands, various 

 additions have been made, more especially by Mr. W. S. 

 Duncan and Dr. W. A. Shoolbred. The latter's visit last 

 year produced an interesting series of plants, the results of 

 which he has embodied in a paper in " The Journal of 

 Botany" (1895), pp. 237-249. 



In this paper, remarking on my former one, he says : 

 " Mr. Bennett's estimate of the number likely to be added to 

 the flora will, I think, prove to be under the mark." My 

 estimate of the probable addition of fifty or sixty species was 

 based on a study of that of the Inner Hebrides, the mainland 

 adjoining, and general conditions of climate and distribution. 

 But those fifty or sixty species took no notice of the Rubus 

 or Hieracium " species," so that the forty species added by Dr. 

 Shoolbred must be reduced to twenty-four to fairly be taken in 

 comparison with my remarks. Since 1892 the West of Scot- 

 land has been shown to produce several species not then 

 considered elements in its flora ; and I would now raise my 

 estimate to about sixty-six species beyond the 1892 records 

 as likely to occur. 



Of published information relating to the Islands may be 

 named : 



Mr. Gorrie's Notes on a Tour to At/iol!, The Lews, etc., " Edin. Nat. 

 Field Club," 1876; and Mr. T. Scott's Barra Ferns, "Ann. 

 Scot. Nat. Hist." (1894), p. 187. 



I notice here not only actual additions, but confirmations 

 of old records which Watson had doubted, and either ignored 

 or placed in square brackets as errors or doubtful. 



THALICTRUM. Undoubtedly two forms occur in Benbecula. The 

 one is T. DUNENSE, Dum. ; the other one I cannot at present 

 give a name to. 



1 First paper, "Ann. of Scot. Nat. Hist." (1892), pp. 56-64. 



