i8o ANNALS OF SCOTTISH NATURAL HISTORY 



POLYGONUM AMPHIBIUM, Linn., Tar. TERRESTRE. Roadside, 

 Crantit, Saint Ola, Mainland, 25th July 1876, H. H. Johnston; 

 and wet ground, near the east end of the Loch of Brue, Lady, 

 Sanday, Qth July 1883, H. H. Johnston. Native at both stations. 



RUMEX CRISPUS, Linn., var. TRIGRANULATUS, Syme. Shingle 

 at the seashore, Hangaback, Gyre, Orphir, Mainland, nth August 

 1879, H. H. Johnston. Native. 



SALIX CAPREA, Linn. Banks at burnside, Berriedale, Hoy, 

 i5th May 1884, H. H. Johnston; and cliffs at the seashore, Pegal 

 Bay, Waas, Hoy, i6th June 1884, H. H. Johnston. Native at 

 both stations. See "Scot. Nat.," No. i., new series, July 1883, 

 p. 22. 



SALIX MYRSINITES, Linn., Tar. PROCUMBENS. Very rare on 

 crags on hillside, Glen of Gair, Wart Hill, Hoy, 4th July 1883, H. H. 

 Johnston. Native. The cultivated specimens of this variety in 

 the "Set of British Willows," Fasc. i., No. 23, issued by Messrs. 

 E. F. Linton and W. R. Linton, in 1894, were originally gathered 

 at the above mentioned station, by Mr. W. R. Linton, in my company, 

 on loth August 1886. 



CLASS II. MONOCOTYLEDONS. 



ORCHIS MASCULA, Linn. Cliffs at the seashore, Hellia, Hoy, 

 2oth June 1883, H. H. Johnston. Native. See "Scot. Nat.," 

 No. i., new series, July 1883, p. 25; and "Scot. Nat.," No. xiii., 

 new series, July 1886, p. 312. 



ORCHIS INCARNATA, Linn. Pasture, Bay of Islands, Loch of 

 Harray, Stenness, Mainland, 26th June 1883, H. H. Johnston. 

 Native. 



LISTERA OVATA, Brown. Meadow, near the Established Church 

 Manse, Harray, Mainland, 26th July 1883, H. H. Johnston. Native. 

 See "Scot. Nat.," No. i., new series, July 1883, p. 26; and "Scot. 

 Nat.," No. xiii., new series, July 1886, p. 312. 



*ANACHARIS ALSINASTRUM, Bab. Stagnant water in an old 

 quarry, near Inganess Cottage, Saint Ola, Mainland, 5th May 1884, 

 H. H. Johnston. Naturalised. Probably accidentally introduced 

 into Orkney by Mr. William Cowan, who informed me that he 

 brought plants of this species, in a tank, to Inganess Cottage, in 

 1869. 



RUPPIA SPIRALIS, Hartm. Mud at bottom of brackish water, 

 Bridge of Brogar, Loch of Harray and Loch of Stenness, Mainland, 

 1 3th August 1880 and 24th September 1880, H. H. Johnston. 

 Native. Removes the ? after "ni Orkney?" in Watson, "Top. 

 Bot.," ed. ii., p. 423. See " Bot. Exch. Club Report," 1880, p. 41 ; 

 and "Scot. Nat.," No. i., new series, 1883, p. 25. 



