ADDITIONS TO THE FLORA OF ORKNEY 177 



MONTIA FONTANA, Linn., var. RIVULARIS. Ditch, Burn of Ore, 

 Waas, Hoy, 3rd June 1884, H. H. Johnston. Native. 



Claytonia perfoliata, Don. Gravel walk in garden, Hall of 

 Tankerness, Saint Andrews, Mainland, 2ist April 1884, H. H. 

 Johnston. Garden weed. 



SAXIFRAGA OPPOSITIFOLIA, Linn. --Crags on hillside, Wart 

 Hill, Hoy, 1 8th August 1881, H. H. Johnston. Native. Removes 

 the ? after " in Orkney?" in Watson, "Top. Bot.," ed. ii., p. 180. 

 See "Scot. Nat.," No. xlviii., October 1882, p. 365. 



PIMPINELLA SAXIFRAGA, Linn. Pikaquoy, near Kirkwall, Saint 

 Ola, Mainland, 1849, Robert Heddle's Herbarium (in my posses- 

 sion). {Native. See " Scot. Nat.," No. xlviii., October 1882, p. 365. 



FCENICULUM VULGARE, Gaert. Grassy banks at the seashore, 

 Carrick, Eday, nth July 1883, H. H. Johnston. Native. 



Levistiaim officinale, Koch. Roadside, Swannay, Birsay, Main- 

 land, 27th July 1883, H. H. Johnston. Escape from garden. 



GALIUM PALUSTRE, Linn., var. WITHERINGII. Meadow, Scapa, 

 Saint Ola, Mainland, 25th July 1876, H. H. Johnston. Native. 



Sherardia arvensis, Linn. Only one plant in a turnip-field, 

 Swanbister, Orphir, Mainland, 27th August 1880, H. H. Johnston. 

 An introduced weed of cultivation. See "Scot. Nat.," No. xlviii., 

 October 1882, p. 367; and "Scot. Nat," No. xiii., new series, 

 July 1886, p. 319. 



My collection of Orkney Hieracia was examined by Mr. F. J. 

 Hanbury, on 4th December 1894. He has referred the specimens 

 to 12 different species; but, on account of the specimens having 

 been pasted down on the herbarium sheets of paper, and, therefore, 

 not satisfactorily examined, he has only been able to definitely 

 identify 7 of the i 2 species. Of these 7 species, 2 H. Pilosella, 

 Linn., and H. iricum, Fries are recorded from Orkney in Watson, 

 "Top. Bot.," ed. ii., pp. 229 and 232, and the following 5 are new 

 to the Orkney flora. 



HIERACIUM SCHMIDTII, Tausch., var. CRINIGERUM, Fries, "Symb. 

 ad Hist. Hieraciorum," p. 94, 1848 (fide F. J. Hanbury). The 

 same specimen was identified as H. vulgatum, Fries, by the late Dr. 

 J. T. I. B. Boswell. Hoy, 4 th July 1883, H. H. Johnston. 

 Native. See H. vulgatum, Fries, in "Scot. Nat.," No. xlviii., 

 October 1882, p. 370. 



HIERACIUM SCOTICUM, F. J. Hanbury, in "Journ. Bot.," vol. 

 xxvi., 1888, p. 1 06 (fide F. J. Hanbury). The same specimen was 

 identified as H. gotJiicum, Fries, by the late Dr. J. T. I. B. Boswell. 

 Very rare on cliffs at the seashore, Hangaback, Gyre, Orphir, Main- 

 land, iSth August 1885, H. H. Johnston. Native. See H. 

 gothicwn, Fries, in "Scot. Nat.," No. xlviii., October 1882, p. 370. 



