. The drug plants of Illinois. Botany, Medical; Botany. BETULA LENTA L. Sweet birch, cherry birch, black birch, spice birch. Betulaceae.—An aromatic tree 50 to 80 feet tall; baric of the trunk thick and rough, that of the branchlets shiny and reddish-brown; leaves bright green, ovate, acute, 21/ to 4 inches long, sharply serrate, petioled, alternate; flowers in catkins; fruit a winged nutlet, produced in erect, oval cones about 1 inch long. The bark of the trunk collected. Rare in the state, occurring in Lee County and in the bogs of Lake County. Contains an aromatic oil similar to win- tergre


. The drug plants of Illinois. Botany, Medical; Botany. BETULA LENTA L. Sweet birch, cherry birch, black birch, spice birch. Betulaceae.—An aromatic tree 50 to 80 feet tall; baric of the trunk thick and rough, that of the branchlets shiny and reddish-brown; leaves bright green, ovate, acute, 21/ to 4 inches long, sharply serrate, petioled, alternate; flowers in catkins; fruit a winged nutlet, produced in erect, oval cones about 1 inch long. The bark of the trunk collected. Rare in the state, occurring in Lee County and in the bogs of Lake County. Contains an aromatic oil similar to win- tergreen oil and the glucoside gaultherin; methyl salicylate is obtained from the glyco- side. Used as a flavoring agent, an antisep- tic, and an antirheumatic. I. BRASSIGA ALBA (L.) Boiss. [Sina- pis alba L.) White mustard, yellow mustard, charlock, kedlock, senvre. Cru- ciferae.—An erect, spreading-branched, stiff-hairy herb 1 to 2 feet high, annual; lower leaves deeply pinnately lobed and with a large terminal lobe, 6 to 8 inches long; stem leaves tending to be less lobed and lanceolate; flowers yellow, 4-parted, small; pods narrow, about 1 inch long, spreading, constricted betw^een seeds, rough-hairy; seed roundish, pale yellow. The seed collected when ripe but before the pod is ready to burst. Introduced and often escaping but apparently failing to be- come established. Contains the glucosides sinalbin and myr- osin, and these in the presence of water form a pungent fixed oil. Used as an emetic and rubefacient. I. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Tehon, L. R. (Leo Roy), 1895-1954. Urbana, Ill. : Natural History Survey Division


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