CONTRIBUTION TO A FLORA OF THE OUTER HEBRIDES 173 



Brit." p. 400, are: Tyne, to 250 yards?; Humber, to 200 

 yards. The following may be quoted : 1500 feet, West York- 

 shire, Lees; 2600 feet, Outer Hebrides, Babington ; 3500 

 feet, Mid Perth, Macvicar ; "All levels," F. B. White, " Fl. 

 Perth"; "Coast only," Baker in "Lake Flora"; Ireland, 

 County Down to 1600 feet, Stewart and Praeger. 



AGROPYRUM ACUTUM, R. et S. Scarp, W. S. Duncan, sp., teste 

 Hackel. The distribution in the North of Scotland of A. acntum 

 and A. pungens is very uncertain. Some specimens seem to 

 differ from both, and yet not to agree with A. junccum. 



PHEGOPTERIS DRYOPTERIS, Fee. Obbe, North Harris ; Scarp, 1899, 

 one very luxuriant clump, W. S. Duncan, sp. ; not in Orkney, 

 whence P. polypodioides, Fee, is recorded. 



CRYPTOGRAMMA CRISPA, R. Br. Middle of the North Harris range, 

 W. S. Duncan. 



OSMUNDA REGALIS, L. Loch Arynuish and Larvagha, Gorrie. " In 

 good plenty in Shetland," Beeby, 20/8/1901. 



OPHIOGLOSSUM VULGATUM, Z. Scarp, W. S. Duncan; var. poly- 

 phylluni, Braun. Scarp, W. S. Duncan, sp. ; also on St. Kilda, 

 Barrington ! 



LYCOPODIUM ALPINUM, L. In North Harris, but rather scarce, 

 W. S. Duncan. 



(A remarkable absentee from the Outer Hebrides is L. 

 clavatiim, L. It surely must occur ; but I can find no record 

 of it. It occurs in Sutherland, Caithness, Orkney, and 

 Shetland.) 



EQUISETUM SYLVATICUM, L. Pretty frequent in the North of Scarp, 

 W. S. Duncan, sp. 



ISOETES ECHINOSPORA, Diir. Loch a little south of Tarbert, W. S. 

 Duncan, sp. ; Scarp, 1897, Duncan, sp. ; in West Ross (Ewing, 

 sp.) and West Sutherland (C. S. Marshal], sp.). 



[I. lacustris, L., occurs in Shetland (Beeby), but is not on 

 record for Orkney.] 



NlTELLA CONFERVACEA, A. BrailH (N. GRACILIS, var. CONFERVACEA, 



Breb.) To this the Messrs. Groves 1 now refer the JV. Nordsted- 

 tiana, H.and G. Groves, = N.batrachosperma, A. Br. (name only). 

 They also give it for the Lakes in Ireland. It is a very rare 

 species, and one of the smallest and most delicate of the 

 order. 



The following species are remarkable as absentees 

 from the Outer Hebrides, the numbers placed after the 



1 In Babington's " Man. Br. Bot." gth ed. p. 539, 1904. 



