1922-23.] BOTANICAL SOCIETY OF EDINBURGH 177 



spur of lower petal dark purple, as long as the calycine 

 appendages. Two lateral petals and lower petal turning 

 pale yellow on drying. Confirms the record of this species 

 from Orkney (Stromness, Mainland, 1900, Rev. E. S. Marshall) 

 in Drabble,' " The British Pansies," p. 21 (1909) ; " Annals 

 Scot. Nat. Hist.," No. 73, p. 59 (January 1910) ; and " Trans. 

 Bot. Soc. Edin.," vol. xxvii, p. 55 (1916). 



POLYGALA OXYPTERA, Reichb. [=P0LYGALA DUBIA, Bellyuck] 



[fide C. E. Salmon). — Grassy cliffs at seashore, 10 feet above 

 sea-level, Scapa, Saint Ola, Mainland, 25th July 1876 (the 

 same specimen was identified as " Polygala depressa, 

 Wetider," by the late Dr. J. T. I. B. Boswell), and 5th July 

 1912, H. H. Johnston ; natural pasture at edge of sea-cliffs, 

 50 feet above sea-level, Howequoy Head, Holm, Mainland, 

 20th August 1922, H. H. Johnston ; and grassy banks at 

 burnside, 110 feet above sea-level, Geo Burn, Germiston, 

 Stenness, Mainland, 20th September 1922, H. H. Johnston. 

 Native and rare at all of these three stations. Confirms the 

 record of this species from Orkney (Rousay, July 1896, Miss 

 Webb) in Bennett, " Suppl. Top. Bot.," p. 17 (1905). See 

 " Annals Scot. Nat. Hist.," No. 56, p. 229 (October 1905) ; 

 and Spence, " Flora Orcadensis," p. 9 (1914). 



Medicago lupulina, Linn., var. Willdenowiana, Koch {fide 

 G. C. Druce). — Gravelly ground round filter beds, 200 feet 

 above sea-level, Kirkwall Waterworks Reservoir, near Hatston, 

 Saint Ola, Mainland, 9th August 1920, H. H. Johnston. Not 

 native. Rare. Plants in unripe fruit and sparingly in flower. 

 Confirms the record of this variety from the same station 

 on the same date, by Dr. G. Claridge Druce in " Bot. Exch. 

 Club Secretary's Report for 1921," vol. vi, part iii, p. 378 

 (September 1922). Medicago lupulina, Linn., is recorded as a 

 non-indigenous plant from Orkney in Watson, " Top. Bot.," 

 ed. ii, p. 107 (1883), but the var. Willdenowiana, Koch, is not 

 mentioned in that book. 



[Geum urbanum, Linn. — Plantation of trees, 80 feet above 

 sea-level, Binscarth, Firth, Mainland, 6th September 1922, 

 H. H. Johnston. Not native. Plants introduced into Orkney 

 in the latter half of the nineteenth century and planted at 

 Binscarth, where they have multiplied and spread in the plan- 

 tation of trees. This species is recorded from Orkney in 

 "Annals Scot. Nat. Hist.," No. 26, p. Ill (April 1898); 



TRANS. BOT. SOC. EDIN. VOL. XXVIII 15 



