An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian . ed2illustratedflo02brit Year: 1913 '94 CRUCIFERAE. Brassica Napus L. (.Rape) is like the preceding species but has all the leaves glabrous ; some- times found in waste places. Brassica oleracea L. (Cabbage) is occasionally spontaneous after cultivation. Brassica japonica Siebold. occasionally spontaneous after cultivation, has laciniate, often crisped leaves. 42. DIPLOTAXIS D
An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian . ed2illustratedflo02brit Year: 1913 '94 CRUCIFERAE. Brassica Napus L. (.Rape) is like the preceding species but has all the leaves glabrous ; some- times found in waste places. Brassica oleracea L. (Cabbage) is occasionally spontaneous after cultivation. Brassica japonica Siebold. occasionally spontaneous after cultivation, has laciniate, often crisped leaves. 42. DIPLOTAXIS DC. Syst. 2: 628. 1821. Annua), biennial or perennial herbs, similar to the Mustards, with basal and alternate pinnatifid or lobed leaves, and rather large yellow flowers in terminal racemes. Silique elongated, linear, flat or flattish, short-beaked or beakless, the valves mostly i-nerved. Style usually slender Seeds in 2 complete or incomplete rows in each cavity of tlie silique, margin- ginless; cotyledons conduplicate. [Greek, referring to the double rows of seeds.] About 20 species, natives of the Old World, the following fugitive or adventive in our territory. Type species: Diplotaxis tenuifolia (L.) DC. Perennial; stem leafy nearly to the inflorescence. i. D. tenuifolia. Annual; leaves mostly basal, oblanceolate. 2. D. muralis. I. Diplotaxis tenuifolia (L.) DC. Wall Rocket. Fig. 2108. Sisymbrium tenuifolium L. Cent. PI. i: i8. I755- Diplotaxis tenuifolia DC. Syst. 2: 632. 1821. Perennial, glabrous or nearly so, somewhat glaucous, stem branched, bushy, leafy, l°-4° high. Leaves pinnatifid, often nearly to the midrib, thin, the lower 3-6' long, the lobes dis- tant or close togc;her, mostly narrow; racemes elongated in fruit, loose; flowers 8'-io' broad', pods I'-iV long, about li' wide, nearly erect; pedicels slender, io'-2o' long in fruit. In waste places and ballast. Nova Scotia to On- tario, New Jersey and Pennsylvania, chiefly about the cities and in California. Ad
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