. 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. Botany. 172 CRUCIFERAE. Vol. II. 25. CHEIRINIA Link, Enum. Hort. Berol. 2: 170. 1820. Annual, biennial or perennial, mainly erect and branching herbs, more or less pubescent or hoary, with 2-branched hairs, the leaves simple, entire, toothed or lobed. Flowers yellow. Siliques elongated, linear, 4-angled or rarely terete; valves strongly keeled by a prominent midvein. Stigma l
. 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. Botany. 172 CRUCIFERAE. Vol. II. 25. CHEIRINIA Link, Enum. Hort. Berol. 2: 170. 1820. Annual, biennial or perennial, mainly erect and branching herbs, more or less pubescent or hoary, with 2-branched hairs, the leaves simple, entire, toothed or lobed. Flowers yellow. Siliques elongated, linear, 4-angled or rarely terete; valves strongly keeled by a prominent midvein. Stigma lobed. Seeds oblong, in i row in each cell, marginless or narrowly mar- gined at the top; cotyledons incumbent. [Greek name from similarity of this genus to Cheiri Adans.] A genus of about 90 species, natives of the north temperate zone, most abundant in eastern Europe and central Asia. In addition to the following, several others are found in the Rocky Mountains and on the California coast. Type species: Cheirinia cheiranthoides (L.) Link. Flowers 2"-4" high. Pedicels slender, spreading; pods very narrow, 6"-i2" long. Pedicels stout, short. Perennial; native ; pods ascending. Annual; introduced ; pods spreading. Flowers 8"-i2" high, conspicuous. C. cheir ithoidcs. 2. C. inconspicua. 3. C. rctanda. 4. I. Cheirinia cheiranthoides (L.) Link. Worm- seed or Treacle Mustard. Fig. 2055. Erysimum cheiranthoides L. Sp. PI. 661. 1753. Cheirinia cheiranthoides Link, Enum. Hort. Berol. 2: i;o. Chciranthus cheiranthoides Heller, Cat. N. A. PI. 4. 1898. Erect, minutely rough-pubescent, branching, 8-2° high. Leaves lanceolate or oblong-lanceolate, 1-4' long, acntish or obtuse, entire or slightly dentate, taper- ing at the base into a short petiole or the upper sessile; pedicels slender, spreading or somewhat ascending, 3"-4" long in fruit; flowers about 2J" high; pods linear, obtusely 4-angled, glabrous, 6"-i2" long, less than
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