182 TRANSACTIONS OF THE [Sess. lxxxvii 



PoTAMOGETOX RUTiLUS. Wolfgcuig (fide Arthur Bennett). — 

 Mud at bottom of shallow water in a loch near the seashore, 

 7 feet above sea-level, Loch of Ayre, Saint Mary's Village, 

 Holm, Mainland. 19th August 1922, H. H. Johnston. Native. 

 Common in the Loch of Ayre. Plants in full flower. A new 

 record for this species for H. C. Watson's county No. Ill 

 Orkney. Mr. Arthur Bennett, in a note dated 6th November 

 1922, writes as follows : — " P. eutilus, PFo//.=P. c^spitosus, 

 Nolte. Your specimens come about half-way between the 

 Swedish rutilus and the Schleswig-Holstein c^espitosus (of 

 which I possess a specimen from Nolte himself). The turios 

 (winter-buds) are just like what Hagstrom describes." 



Catabrosa AQUATiCA, Beauv., var. b. littoralis, Parn. 

 (name confirmed by Arthur Bennett). — Marshy shell-sandy 

 edge of a swamp near the seashore, 20 feet above sea-level, 

 Loch of Aikerness (now a swamp through drainage of the 

 loch), Evie, Mainland, 6th October 1922, H. H. Johnston. 

 Native. Rare. Plants sparingly in flower. Anthers pale 

 yellow. This species is recorded from Orkney in AYatsou, 

 " Top. Bot.," ed. ii, p. 486 (1883). but the var. h. littoralis, 

 Parn., is not mentioned in that book. The late Dr. A. R. 

 Duguidj in his manuscript " Flora Orcadensis " (1858), 

 records Catabrosa aquatica, Beauv., from the Loch of 

 Aikerness, but, no doubt, it was the var. b. littoralis, Parn., 

 he saw there, because I did not see the type of the species at 

 that station. See " Journ. Bot.," No. xiii, p. 17 (January 

 1864) ; " Scot. Nat.," New Series, p. 110 (January 1884)'; 

 '•' Annals Scot. Nat. Hist.," No. 33, p. 39 (January 1900) ; 

 and Spence, " Flora Orcadensis," p. 88 (1914), where the 

 var. b. minor, Babington, " Manual of British Botany," 

 ed. i, p. 366 (1843) [=var. b. littoralis, Parn.], is mentioned 

 as being more common in Orkney than the type of the species. 



Brachypodium sylvaticum, Roem. et Schult., var. b. 

 GLABRESCENS, Synie {fide Arthur Bennett). — Grassy cliffs at 

 seashore, 30 feet. above sea-level, Lingro, Scapa Bay, Saint 

 Ola, Mainland, 24th August 1922, H. H. Johnston, plants in 

 full flower ; and grassy cliffs at seashore, 50 feet above sea- 

 level, Berstane, Saint Ola, Mainland, 19th October 1922, 

 H. H. Johnston, plants in fruit. Native and common at 

 both these stations. Brachypodium sylvaticum, Roem. et 

 Schult., is recorded from Orkney in Watson, " Top. Bot.," 



