CRUCIFER®. 129 
SPECIES IV.—BRASSICA ADPRESSA. Bois. 
Pirate LXXXVI.* 
Sinapis incana, Linn. Reich. Ic. Fl. Germ. et Helv. Vol. II. Tetr. Tab. LXXXV. 
Fig. 4483. 
Brassica adpressa, Bois. Lenth. Handbook Brit. Fl. p. 92. 
Hirschfeldia adpressa, Monch. Meth. 264. Gr. & Godr. F). de Fr. Vol. I. p. 78. 
Erucastrum incanum, Koch, Syn. Fl. Germ. et Helv. ed. ii. p. 61. 
Sinapis incana, Linn. (1) et Auct. Piur. 
Lower leaves stalked, lyrate, sinuated or toothed; the upper- 
most ones sub-sessile, lanceolate or narrowly elliptical, entire. 
Pods adpressed, slightly hispid or glabrous, cylindrical, somewhat 
4-sided, scarcely beaded; valves truncate, not attenuated at the 
apex, each with a faint dorsal rib; beak cylindrical-clavate, ribbed, 
more than half the length of the valves. Seeds 2 or 3 in each cell, 
reddish brown, punctured (to the naked eye). 
In sandy fields. Rare, and apparently confined to the islands 
of Jersey and Alderney. 
Channel Islands. Biennial or Annual. Summer, Autumn. 
Extremely like B. nigra, but differs in the following particulars : 
Root frequently biennial. Leaves less divided, and the upper ones 
less distinctly stalked. Pods about 2 inch long, of which the beak 
occupies about + inch; the valves the same width from the base to 
the apex, with the dorsal.rib less prominent and the places of the 
seeds scarcely indicated by bead-like enlargements; beak a little 
narrower at its base than the valves, and then slightly enlarged 
towards the apex, with 8 ribs, and usually containing 1 seed. Seeds 
more flattened than in B. nigra. Whole plant thickly clothed 
with short bristly hairs, which are reflexed upon the stem; these 
hairs cause a greyish appearance very different in colour from the 
dark green of B. nigra. 
Hoary Mustard. 
French, Moutarde Blanchdtre. 
Sus-Genus I].—EU-BRASSICA. 
Sepals erect, glabrous. Seeds sub-globular, arranged in a single — 
row down the middle of the pod. 
* The Plate is E. B. S. No. 28435, unaltered. 
S 
