Crucifer®. 
71 
3. FI.-raceme at first flat, the open fls slightly exceeding 
those not yet open. Ls of the first year grass-green, 
rough. Cultivated in several varieties. Rape. 4, 5 
t Rapa L. 175. 
— Fl.-raceme elongated from the first, the open fls stand¬ 
ing lower than the buds. Ls all glaucous . . ff 
4. Siliquas ascending; the beak about half as long as the 
siliqua. Lower Is with scattered hairs—Fields of Alpine 
valleys, especially in Gr. and AY., sometimes very plenti¬ 
ful. 7. campestris Dec. 176. 
— Siliquas spreading; beak about x i& the length of the 
siliqua. Ls all glabr.—Cultivated in several varieties. 
Turnip. 7 .... f Napus L. 177. 
47. Sinapis. Mustard. XY, 43. 
1. Ls irreg. sinuate-dentate, the lower ones auricled or 
almost lyrate, the upper sessile. Siliquas with a conical, 
slightly compressed beak, shorter than the valves. Seed 
blackish brown. Field mustard.—Fields, often very 
plentiful. 5 ..... arvensis L. 178. 
— Ls pinnatifid, all petioled; segments 5—9, the upper 
ones confluent. Beak broad, sword-shaped, with two 
edges, as long as or longer than the valves. Seeds 
yellowish. AVhite mustard.—Fields, here and there, pro¬ 
bably, for the most part, an escape from cultivation. 6 
alba L. 179. 
48. Erucastrum. Erucastrum. XY, 42. 
1. Siliquas applied. Ls lyrate, gray-pubescent, the upper 
linear-lanceolate. Sinapis incana L. Hirschfeldia adpressa 
Monch.—Fields, especially among young lucern, rare 
(adventitious). 6 incanum Koch. 180. 
— Siliquas spreading. Ls all sinuate-pinnatifid, or pinnati- 
partite, with oblong, obtuse, unequally angular dentate 
segments ......... 2 
2. Fls lemon-yellow, without bracts. Seps spreading horizon¬ 
tally.—Road-sides, rubbish heaps, water side; distrib. 5, 6 
obtusangulum Rchb. 181. 
— Fls yellowish white, the lower ones with bracts, smaller 
than in the last. Seps almost erect.—As the last (want¬ 
ing in T. AY.). 5, 6 . . Pollichii Sell, and Sp. 182. 
49. Diplotaxis. Rocket. XY, 44. 
1. Peduncles about 2 or 3 times as long as the fls. Sili¬ 
quas distinctly stipitate (3 mm) on the cal.—Road sides, 
rubbish heaps, walls; not everywhere, sometimes also 
adventitious. 5, 6 . . . . tenuifolia Dec. 183. 
