194 ENGLISH BOTANY. 
leaf (if present) ovate - lanceolate, sessile; all hairy and ciliated, 
generally entire. Petals slightly notched at the apex. Raceme 
elongating only a little after flowering. Pedicels erect, shorter 
than the pods. Pods elliptical or oval-elliptical, compressed, not 
twisted on their axis, with scattered forked hairs; style none; 
stigma distinctly notched. 
On damp rocks on high mountains. Very rare. It grows on 
Ben Lawers, near the summit, and was found by the late Dr. 
Graham on Catjaghiamman, near Killin, Perthshire. It has been 
also gathered on Cairngorm, at the junction of the counties of 
Aberdeen, Moray, and Inverness, and on Ben Hope in Sutherland. 
A specimen in the Hookerian Herbarium is labelled “ Ingle- 
borough” in the handwriting of Sir William J. Hooker. 
Scotland, England? Perennial. Summer. 
This species bears some resemblance to small specimens of 
D. ineana; but the rootstock is much more branched, and produces 
a greater number of barren tufts of leaves, which are also less per- 
fectly disposed in rosettes, from the internodes being usually a 
little more developed. The leaves are generally much narrower, 
less hairy on the surfaces, and more distinctly ciliated. The stem 
is generally bare of leaves, and scarcely ever has more than one, 
and the hairs on the stem and pedicels are more distant, and on the 
latter much longer. The flowers are fewer, white; the sepals 
narrower, and almost glabrous; and the petals are not quite so long 
as in D. incana; the fruiting raceme is also less elongated, the pods 
never twisted, and always with stellate pubescence upon them. 
Fruit pedicels about § inch long. Pods about } inch long, twice 
or thrice as long as broad. The seeds are very similar to those 
of D. incana, but smaller. 
Rock Whitlow Grass. 
French, Drave des Rochers. 
SPECIES V.—DRABA AIZOIDES. Linn. 
Prats CXXXVIII.* 
Reich. Ic. Fl. Germ. et Helv. Vol. II. Zeér. Tab. XV. Fig. 4254. 
Stem simple, leafless, glabrous. Radical leaves rigid, linear or 
strap-shaped, pointed, keeled, entire, with cartilaginous points 
* In the Plate E. B. 1271 the leaves were not sufficiently spreading, and the hairs 
were obliterated in transferring the plate to the stone. A new Plate has now been 
engraved. 
