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NOTES ON THE FLORA OF PERTHSHIRE 233<br />
and C. hclvola. It is somewhat remarkable that in our lowland<br />
bogs, as at Virginia Water, Berkshire, where canescens and<br />
echinata grow together, no intermediate has been found.<br />
C. echinata, Murray, var. grypos (Schkuhr). Ben Lawers, growing<br />
with C. helvola. On this Kiikenthal remarks " : The alpine<br />
form, with very dark spikelets and strong curved stalk." In<br />
the very young state there is considerable resemblance to<br />
helvola, even closer than I had before realised ;<br />
but as soon<br />
as seed had set or flowering was over the strong differentiation<br />
between the two species takes place. I collected some sterile<br />
or partly sterile forms ;<br />
but if a fruit or two appeared they had<br />
the characteristic shape and nervation of echinata, and the<br />
foliage showed no approach to C. canescens. Moreover, I<br />
collected the same sterile forms on parts of the Lawers range<br />
well out of the influence of C. canescens. The result of my<br />
observations leaves me still uncertain as to the presence of<br />
echinata in the Lawers C. helvola.<br />
C. Goodenovii, Gay,<br />
ascends to 2600 feet in H. Isla. Near<br />
Lochan-na-Lairige occurs the var. juncella,<br />
Fries.<br />
C. rigida, Good. "On top of Ben Lomond," J. E. Smith in " E. B.,"<br />
t.<br />
1809 (1782).<br />
Carex atrata, L. Ben Heasgarnich.<br />
C. atrofusca, Schkuhr (C. nstulata, Wahl.). I saw over a hundred<br />
specimens on Ben Heasgarnich.<br />
C. vaginata, lausch. On Glas Thulachan, rare; new to H. Isla.<br />
On Ben Heasgarnich rather common.<br />
C. panicea, L. At 3000<br />
feet on Glas Thulachan.<br />
C. flacca, Schreb. (C. glauca, Scop.), ascends to 2500 feet in H. Isla.<br />
var. stictocarpa, Druce. Creag-an-Lochain.<br />
C. pilulifera, Z., ascends to 2800 feet on Glas Thulachan. A<br />
bracteate form is not uncommon on the higher hills. A small<br />
form, named var. adusta by F. A. Lees in " Report of Record<br />
Club," was gathered by me.<br />
C. flava, L., ascends to 3000 feet in Breadalbane.<br />
var. pumila, Anders. Ben Lawers, Ben Heasgarnich, Ben<br />
Laoigh.<br />
var. lepidocarpa (Tausch). Ben Lawers, tests Pfarrer<br />
Kiikenthal.<br />
C. flava x CEderi. Ben Laoigh.<br />
C. fulva, Good. (C. Hornschuchiana, Hoppe). Lochan-na-Lairige<br />
with C. xanthocarpa, Degl ;<br />
also on Ben Heasgarnich.<br />
C. binervis, Sm., ascends to 2700 feet on Glas Thulachan.
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