. Un manuel de plantes toxiques, principalement de l'Est de l'Amérique du Nord, avec de brèves notes sur le développement économique et les plantes médicinales, et de nombreuses illustrations. Plantes toxiques. 568 Manuel de plantes toxiques de la distribution. L'ouest du Minnesota, dans l'ouest de l'Iowa et du Missouri jusqu'au Texas et au Nouveau-Mexique, au nord de la Colombie-Britannique et Territoire du Nord-Ouest. Les propriétés toxiques. Les verres loco est l'une des mauvaises herbes les plus caractéristiques de l'Ouest les mauvaises herbes loco. Les symptômes d'intoxication sont similaires à ceux produits par les mauvaises herbes loco laineux décrite en détail ailleurs. La substance toxique n'a pas été isolé. Un alka

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. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. 568 MANUAL OF POISONOUS PLANTS Distribution. Western Minnesota, Western Iowa, and Missouri to Texas, and New Mexico, north to British Columbia, and northwest territory. Poisonous properties. The stemless loco weed is one of the most characteristic loco weeds of the West. The symptoms of poisoning are similar to those produced by the woolly loco weed described at length elsewhere. The poisonous substance has not been isolated. An alkaloid, however, has been reported by Prof. Prescott. Chesnut and Wilcox, in speaking of the history of the loco poisoning in Mon- tana, say that in Colorado the plant which is most commonly known as loco weed is Astragalus mollissimus. In Montana, on the other hand, the plants most generally called loco weeds by the stockmen are species of Aragallus {Orytropis). "The species which is most concerned in causing the loco disease in Montana is the Aragallus spicaius and is closely related to Oxytropis Lamberti, " Stockmen are of the opinion that a condition somewhat similar to loco poisoning may be brought about by eating undue quantities of alkali soil. a c. Fig. 313. Stemless or Purple l^oco Weed a, Plant. Dept. Agr. b. Seed pods, c, Seed. U. S. It should be stated also that the larvae of sheep bot flies, which are frequently found in the frontal sinuses of the head, can not possibly be considered the cause of the nervous symptoms characteristic of the ioco disease, for the reason that these larvae are not found in greater abundance in locoed than in healthy sheep. For the same reason the presence of the common tape vform ^Taenia serrata) in the small intestines and bile duct of sheep can not be considered as the cause of the locoed condition. These worms are almost. Please note that these images are extracted from scanned page images that may have been digitally enhanced

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