ON THE FLORA OF TIREE 35 



and they occur in quantity. The profusion and luxuriance 

 of the Veronica is one of the striking features of the flora of 

 Tiree, while it has been found in several of the islands of 

 the Outer Hebrides. It is to be noted that Tiree and the 

 Outer Hebrides have low -lying ground with lochs little 

 above sea level, and that it is characteristic of the parts of 

 the Inner Hebrides referred to, as they are basaltic, to rise 

 more or less precipitously from the shore to an inland 

 plateau. There are some places where this does not occur, 

 but not on any of those which I have examined have I met 

 with any of these species. 



Some of these plants appear to miss the intervening 

 islands between Tiree and the Clyde area, such as Ranunculus 

 Baudotii (allowing that Balfour's R. aqnatilis from Islay is 

 the R. Dronetii of Mr. Ewing's list), Chara aspcra, C. con- 

 traria, and C. Jiispida. C/iara vulgaris might be added, 

 though it will probably be found to occur. These species 

 are also unrecorded from the western mainland north of the 

 Clyde area. 



Among the rarer plants of Tiree there are Ranunculus 

 marinas, Fr., which has not been definitely found anywhere 

 else in Scotland ; Anthyllis Vulneraria, var. maritima, Koch, 

 not previously recorded, I think, from Scotland ; Saxifraga 

 tridactylites, apparently new for the West of Scotland ; Slum 

 erectum, not found elsewhere on the West Coast north of the 

 Clyde ; Plantago Coronopus, var. maritima, Gren. and Godr., 

 new to Britain ; Equisetum arvense, var. serotinnin, Mey., 

 new, I think, for Scotland ; Potentilla reptans, Carex disticha, 

 and C. hirta, which reach here their most northerly reported 

 localities on the West Coast. 



In mentioning the West Coast mainland I have not taken 

 into account Watson's vice -county of West Sutherland, 

 because the greater part of that district is not on the western 

 watershed ; and until some other division of the extreme 

 north is made it is only misleading to consider it in that 

 connection. Allowance must also be made for error in 

 quoting records of plants until a much needed new edition 

 of " Topographical Botany " appears. 



Of the 320 species, excluding CJiaracece, which have been 

 found in Tiree, the great proportion belong here, as elsewhere, 



