. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. 602 MANUAL OF POISONOUS PLANTS Of our native species, Bigelow says that the juice of several was used in his day to de- stroy warts, and Gray describes them all as containing an acrid, poisonous juice The most active of them are B. corollata, B. Ipecacuanltae, and B. Lathyris. Trie first of these, com- monly called snake-milk, according to Bigelow, has been used for blistering purposes, and the Dispensatory states that the bruised ro
. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. 602 MANUAL OF POISONOUS PLANTS Of our native species, Bigelow says that the juice of several was used in his day to de- stroy warts, and Gray describes them all as containing an acrid, poisonous juice The most active of them are B. corollata, B. Ipecacuanltae, and B. Lathyris. Trie first of these, com- monly called snake-milk, according to Bigelow, has been used for blistering purposes, and the Dispensatory states that the bruised root will vesicate the skin. Mr. Cheney informs me that the juice of B. Ipecacuanhae is quite troublesome to many who collect and handle it; and Bazin states that the dust of B. Lathyris, growing both in Europe and in this country, causes redness, painful swelling, and vesicles upon the workmen employed in handling it. With reference to the poisonous nature of the juice of the several species,, nothing very definite is known. Bttphorbon C^gH^^O^ has been found in Eu- phorbia Ipecacuanhae. This euphorbon acts as an irritant to the mucous mem-. Fig. 338. Large Spotted Spurge (Buplwrbia Preslii). Sup- posed to cause "slobbers*' in horses. (Charlotte M. King.) branes throughout the alimentary tract. The caper spurge (^Euphorbia Lathy- ris) is poisonous, and the following physiological actions are described by Dr. Millspaugh: Brilliant, staring, wide-open eyes, dilated pupils; death-like pallor of the countenance; retching and vomiting; violent purgation, stools frequent, copious, and in some cases bloody; irregular pulse; whole body cold and rigid, followed by heat and perspiration. M. M. & Sudour and A. Caraven-Cachin state that emesis always precedes purgation, and that the seeds have an irritating action upon the mucous membrane of the intestinal canal, principally in the larger intestines. They divide the effects into three stages: o, the cold stage, including vomit-. Pl
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