1921-22.] BOTANICAL SOCIETY OF EDINBURGH 101 



Group I. — arvenses. 



Viola segetcdis, Jordan, "Observations," ii, p. 12, t. Ib. 

 (fide Arthur Bennett and W. G. Travis). — The same 

 specimens were identified as " Viola arvensis, Murr.," by 

 the late Dr. J. T. I. B. Boswell, Corn-field, Hurkisgarth 

 Sandwick, Mainland, 4th August 1886, H. H. Johnston 

 Not native. A weed of cultivation. Plants in full flower 

 See "Bot. Exch. Club Report for 1886," p. 145 (1887) 

 "Scot. Nat.," No. XXV, new series, p. 112 (July 1889); 

 "Bot. Exch. Club Report for 1900," p. 623 (1901); "Annals 

 Scot. Nat. Hist." No. 15, p. 175 (July 1895); Bennett, 

 "Suppl Top. Bot." p. 15 (1905); and Spence, "Flora 

 Orcadensis," p. 8 (1914). 



Group II. — tricolores. 



Viola Lloydii, Jordan in Boreau, " Fl. du Centre," ed. 8, 

 ii, p. 80 (fide W. G. Travis). — Corn-field, Hangaback, Gyre, 

 Orphir, Mainland, 7th August 1874, H. H. Johnston (the 

 same specimen was identified as " Viola tricolor, Linn.," by 

 the late Dr. J. T. I. B. Boswell) ; shell-sandy hay-field, 20 

 feet above sea-level, Quoyerland, Lady, Sanday, 17th May 

 1921, H. H. Johnston; gravelly burnside, 130 feet above 

 sea-level, Burn of Vacquoy, Rousay, 20th July 1921, H. H. 

 Johnston; plants growing among *Ulex europaeus, Xm-n., 

 at the side of a road between an oat-field and a grass-field, 

 190 feet above sea-level, Sunnybrae, Saint Ola, Mainland, 

 16th August 1921, H. H. Johnston ; and oat-field, 40 feet 

 above sea-level, Quoys, South Ronaldsay, 6th September 

 1921, H. H. Johnston. Not native. A weed of cultiva- 

 tion, confined in Orkney to cultivated land, where it is 

 common, and to the borders of cultivated land, as at the 

 Burn of Vacquoy in Rousay and Sunnybrae in Mainland, 

 where it is rare. Plants in full flower at all the above- 

 mentioned five stations, and at Sunnybrae some plants 

 were sparingly in fruit on 18th September 1921. The 

 following notes were made by me from living plants, at 

 Sunnybrae in Mainland, on 16th August 1921 : — Flowers 

 inodorous. Two upper petals uniformlj^ violet, with faint 

 dark violet veins; two lateral petals purplish-blue, with 

 3-4 dark violet veins; lower petal purplish-blue, with 7 



