192 ENGLISH BOTANY. 
On rocks in the West of England. Rare. Reported from the 
counties of Somerset, Stafford, Montgomery, Westmoreland; but I 
have only seen specimens from Malham, Yorkshire; and from 
Matlock, Derbyshire. Naturalized at Comely Green, near Hdin- 
burgh; and at Forfar. It occurs also in Ireland, at Blarney 
Castle. 
England, [Scotland,] Ireland. Annual or Biennial? Spring. 
No rootstock. Stem solitary, erect, 4 to 12 inches high, with a 
few ascending branches. Jadical leaves forming a rosette, obovate 
or oblanceolate, narrowed at the base but scarcely stalked, gene- 
rally toothed; stem leaves (except the lowest) amplexicaul, with 
triangular auricles, and coarsely serrate. Flowers in a short raceme, 
white, about =4; inch across. Sepals oblong, purplish, with a few 
hairs or glabrous. Petals narrow, entire, twice as long as the 
sepals. Fruit pedicels ¢ to $ inch long. Pods about $ inch long, 
about three times as long as broad. Seeds 6 or 8 in each cell, very 
minute, oval, compressed, finely punctured. Plant greyish green ; 
the leaves with scattered, simple and stellate hairs; lower part of 
the stem densely clothed with stellate hairs, which become more 
remote towards the top, until the axis of the raceme and peduncles 
are glabrous. 
Wall Whitlow Grass, Speedwell-leaved Whitlow Grass. 
French, Drave des Murs. 
SPECIES III—DRABA INCANA. Zinn. 
Puate CXXXVI.* 
’ Reich. Ic. Fl. Germ. et Helv. Vol. II. Zeér. Tab. XIV. Fig. 4249. 
Stem branched, with rather distant leaves, densely pubescent. 
Radical leaves elliptical or oblanceolate ; stem leaves sessile, scarcely 
at all amplexicaul, elliptical, lanceolate, or ovate; all hairy and 
ciliated, generally with a few very prominent serratures or small 
projecting lobes. Petals slightly notched at the apex. Raceme 
elongating much after flowering. Pedicels ascending, erect, shorter 
than the pods. Pods elliptical or linear-elliptical, compressed, 
twisted on their axis when mature, glabrous, or rarely with stellate 
hairs; style almost none; stigma not distinctly notched. 
On rocks and mountainous districts, and on sandy moors near 
the sea in the North of Scotland. It occurs on the Welsh, Derby- 
* he Plate is E. B. 388, with a small form added by Mr. J. E. Sowerby. 
