NOTES ON THE FLORA OF PERTHSHIRE 233 



and C. hclvola. It is somewhat remarkable that in our low- 

 land bogs, as at Virginia Water, Berkshire, where canescens and 

 echinata grow together, no intermediate has been found. 



C. echinata, Murray, var. grypos (Schkuhr). Ben Lawers, growing 

 with C. helvola. On this Kiikenthal remarks : " The alpine 

 form, with very dark spikelets and strong curved stalk." In 

 the very young state there is considerable resemblance to 

 helvola, even closer than I had before realised ; but as soon 

 as seed had set or flowering was over the strong differentiation 

 between the two species takes place. I collected some sterile 

 or partly sterile forms ; but if a fruit or two appeared they had 

 the characteristic shape and nervation of echinata, and the 

 foliage showed no approach to C. canescens. Moreover, I 

 collected the same sterile forms on parts of the Lawers range 

 well out of the influence of C. canescens. The result of my 

 observations leaves me still uncertain as to the presence of 

 echinata in the Lawers C. helvola. 



C. Goodenovii, Gay, ascends to 2600 feet in H. Isla. Near 

 Lochan-na-Lairige occurs the var. juncella, Fries. 



C. rigida, Good. "On top of Ben Lomond," J. E. Smith in " E. B.," 

 t. 1809 (1782). 



Carex atrata, L. Ben Heasgarnich. 



C. atrofusca, Schkuhr (C. nstulata, Wahl.). I saw over a hundred 

 specimens on Ben Heasgarnich. 



C. vaginata, lausch. On Glas Thulachan, rare; new to H. Isla. 

 On Ben Heasgarnich rather common. 



C. panicea, L. At 3000 feet on Glas Thulachan. 



C. flacca, Schreb. (C. glauca, Scop.), ascends to 2500 feet in H. Isla. 

 var. stictocarpa, Druce. Creag-an-Lochain. 



C. pilulifera, Z., ascends to 2800 feet on Glas Thulachan. A 

 bracteate form is not uncommon on the higher hills. A small 

 form, named var. adusta by F. A. Lees in " Report of Record 

 Club," was gathered by me. 



C. flava, L., ascends to 3000 feet in Breadalbane. 



var. pumila, Anders. Ben Lawers, Ben Heasgarnich, Ben 



Laoigh. 



var. lepidocarpa (Tausch). Ben Lawers, tests Pfarrer 

 Kiikenthal. 



C. flava x CEderi. Ben Laoigh. 



C. fulva, Good. (C. Hornschuchiana, Hoppe). Lochan-na-Lairige 

 with C. xanthocarpa, Degl ; also on Ben Heasgarnich. 



C. binervis, Sm., ascends to 2700 feet on Glas Thulachan. 



