1913-14.] BOTANICAL SOCIETY OF EDINBURGH 217 



1884, p. Ill ; and Bennett, " Suppl. Top. Bot., ed. ii.," 1905, 

 p. 107. 



Triticum repens, Linn., var. Leersianum, Gray (fide 

 Arthur Bennett). — Shell-sand and shingle at the seashore, 

 5 feet above sea-level, Hookin, Papa Westray, 4th 

 September 1913, H. H. Johnston. Native. The var. 

 Leersianum, Gray, was growing side by side with t} T pical 

 Triticum repens, Linn., on the sea-beach, and only a few 

 yards away from Triticum junceum. Linn., on shell-sandy 

 banks immediately above the sea-beach. 



Class III. — Cryptogams. 



Polystichum Lonchitis, Roth. — Clefts of rocks on hill- 

 side, 880 feet above sea-level, Wart Hill, Hoy, 3rd October 

 1913, H. H. Johnston. Native. Very rare ; fifteen plants 

 only seen by me on the above-mentioned date. Removes 

 "[111 Orkney]" from the "supposed errors" in Watson, 

 " Top. Bot.," ed. ii., p. 513. See " Scot. Nat.," No. iii., new 

 series, January 1884, p. 112 ; and Bennett, " Suppl. Top. 

 Bot., ed. ii.," 1905, p. 111. 



Lastrea dilatata, Presl, var. alpina, Moore (fide 

 J. T. I. B. Boswell).— Stenness, Mainland, 6th August 1875, 

 H. H. Johnston. Native. See " Scot. Nat.," No. iii., new 

 series, January 1884, p. 113. 



Notes on Some Rare or Interesting Orkney Plants. 

 By Colonel H. H. Johnston, C.B., D.Sc, F.R.S.E., 

 F.L.S. 



(Read 15th January 1914.) 



This paper contains some notes on twenty-seven species 

 and varieties of Orkney plants collected by me, but not 

 mentioned in my other paper, " Additions to the Flora of 

 Orkney, as recorded in Watson's ' Topographical Botany,' 

 second edition," communicated to the Botanical Society to- 

 day. Of these 27 species and varieties, 25 are native, 1 is 

 naturalised, and 1 is cultivated. The two varieties of 

 Chara FRAGILIS, Desv., mentioned in the following list are 

 new records for H. C. Watson's county 111 Orkney, and 

 they are recorded in this paper because the Charace^e 



