188 ENGLISH BOTANY. 
counties, but no specimens from Scotland have ever come under 
my notice. 
England, Scotland, Ireland. Perennial or Biennial. 
Spring and Early Summer. 
In general habit this species comes near C. officinalis, but 
erows in denser tufts, with more numerous, stiffer, and more erect 
stems, from 3 inches to 1 foot high. The radical leaves, although 
variable in form, are never, so far as I have seen, cordate at the 
base; usually they taper gradually into the footstalk, being very 
rarely abrupt; the stem leaves are also longer and narrower. The 
flowers are considerably larger, being often } inch across. The fruit 
pedicels are at first ascending, but when quite ripe are often spread- 
ing, or even slightly deflexed. The pod is much larger, being (without 
the style) from 2 to } inch long, and more flattened at right angles 
to the replum; the valves more strongly reticulated, and often so 
turgid that the fruit often becomes didymous, there being a great 
constriction in the pod at the narrow replum, when it is var. 
gemina of the Rev. F. J. A. Hort, who first noticed this plant near 
Chepstow ; but this form is also. abundant in the Isle of Sheppey. 
Seeds oblong-oval, reddish brown, punctured, usually 4 in each 
cell of the pod. The fruit of this plant really resembles that of 
the section Angustiseptee, while the previous forms have the fruit of 
the Latiseptze. It is said sometimes to have the radical leaves cor- 
date at the base, and if so, it may possibly be only another sub-species 
of C. polymorpha. 
Long-leaved Scurvy-Grass. 
GENUS XV—DRABA. Linn. 
Sepals short, somewhat spreading or erect, generally equal at 
the base. Petals equal, entire, notched or bifid, with short claws. 
Filaments without wings or teeth. Pod oval, elliptical, or oblong, 
much compressed parallel to the replum, rarely ovoid and not 
compressed ; valves slightly (rarely extremely) convex, with a dorsal 
nerve, and frequently a dorsal furrow. Style short or elongated. 
Seeds few or numerous, oval, compressed, not winged, arranged in 
2 rows in each cell of the pod. 
Small herbs, often clothed with stellate pubescence. Radical 
leaves generally in a rosette. Flowers white or yellow, rarely 
purple, arranged in corymbs or short racemes, which generally 
afterwards elongate. 
French, Drave. German, Hungerbliimchen. 
According to some authors, the name is derived from the word Apd(n, Arabian 
mustard ; according to Linneus, it comes from doa(3n (drabe), acrid, biting, from the 
taste of the leaves, ; 
