CRUCIFERZ. 165 
pinnatifid towards the apex, with short triangular or oblong 
spreading lobes, the terminal one larger than the others, some- 
times spatulate, with only a few teeth at the edges; stem leaves 
few, the lower ones resembling the root leaves, the uppermost 
much narrower, sessile, and usually entire. Flowers corymbose, 
inch across, pure white (“with a purple tinge” — Brit. FL). 
Petals slightly spreading. Pedicels about 4 inch long, spreading or 
slightly ascending. Pods 4 to 1 inch long, slightly beaded. Seeds 
elliptical-ovoid, not winged at the summit, but sometimes with a 
raised margin there. Leaves deep green, with simple and forked 
hairs; sometimes only ciliated, or even quite glabrous. Stem 
usually glabrous, at least in the upper part, but sometimes with 
spreading hairs throughout. 
I have doubts whether the German A. Crantziana be not distinct 
from the present plant, at least as a sub-species. The few speci- 
mens I have seen are without pods; but if Reichenbach’s figure 
be correct, they are much longer and the seeds rounder than in the 
Scotch plant. 
Alpine Rock, or Wall Cress. 
French, Arabette des Pierres. 
SPECIES II—ARABIS STRICTA. ZAuds. 
Pirate CXIV.* 
Reich. Ic, Fl. Germ. et Helv. Vol. II. Zetr. Tab. XX XIX. Fig. 4337. 
Rootstock slender, simple, woody. Radical leaves oblanceolate, 
sinuated or toothed at the edges, attenuated at the base, but 
searcely stalked; stem leaves sessile, oblong, toothed, the upper 
ones semi-amplexicaul. Petals oblanceolate, wedge-shaped, twice 
as long as the sepals, sub-erect. Pods ascending-erect, three to 
five times as long as the pedicels; valves 1-nerved. Style short, 
cylindrical. Seeds oval-oblong and slightly winged especially at 
the apex. 
Extremely local, and only occurring on the carboniferous lime- 
stone at St. Vincent’s Rocks and a few other places in the vicinity 
of Bristol and Cheddar. 
England. Perennial. Spring. 
Stems often dividing into several close to the, base ; individual 
stems erect or ascending, 4 to 9 inches high, simple or slightly 
branched. Radical leaves forming a very compact rosette, not so 
distinctly stalked as in A. petrzea, and less suddenly dilated towards 
* The Plate is KE, B. 614, unaltered, 
