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WILSON'S OBSERVATIONS. 263 
dently form a curve, with distantly placed extremities; but 
when justly ripe the radicle approaches very near the coty- 
ledons. 
14. Draba verna. April 12, 1827. Cotyledons very small, 
accumbent. Seeds roughish. Leaves a little toothed, scarcely 
“notched.” The lower partial flower-stalks become elon- 
gated as the fructification advances. : 
15. Draba Airta. Ben Lawers. August 16, 1827. Leaves 
fringed with forked or stellate hairs. The stellate hairs are 
found on the stem, flower-stalks, backs of the leaves, and 
even upon the valves of the silicle. Except in the shape of 
the silicle, I see no material difference between this and D. 
incana. Draba hirta is found only about the summit of the ` 
mountain, sometimes growing with small plants of D. incana. 
Cotyledons accumbent. 
16. Draba incana. Ben Lawers. July 13, 1827. Partial 
flower-stalks considerably elongated as the fruit ripens. 
Cotyledons accumbent. In Welsh specimens, the hairs on 
the upper surface of the leaf are mostly simple and appressed : 
below, they are stellate. A small roundish nectary at the 
base of each short stamen, on each side. Petals obovate, 
deeply notched. Filaments awl-shaped. Anthers roundish. 
17. Lepidium campestre. Caernarvonshire, June 11, 1828. 
Border of the silicle not flat but incurved or concave on the 
upper side. Pouch covered with papille, as in L. Airtum. 
Stigma capitate, broader than the style. Anthers pale-yellow, 
roundish, Calyx longer than the pistil and not much shorter 
tban the filaments. 
18. Lepidium Airtum. N. Wales, (in plenty) June 11, 
1828. Petals larger and far more conspicuous than in the last. 
Anthers red, oblong, very conspicuous. Stigma very small. 
Style projecting beyond the calyx. Leaves more strongly 
toothed than in the last. 
19. Hutchinsia petrea. Wales, April 29, and May 12, 
1828. Calyx leaves of unequal size, those opposite the sides 
of the germen larger than the rest. Petals almost linear, 
broader at the claw than in the middle. Filaments awl- 
