. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. —EUMYCETES—RUSTS 231. Fig. 67. Qover Sust. Uromyces Trifolii. (Hedw.) I,ev. 1. Aecidium spores; above,, two cluster cups in which the aecidiospores are found. 2. White clover leaf showing the distortions produced by the aecidium stage. 3. Red clover leaf showing clusters of uredo spores. 4. Uredo spores. 5. Teleuto spores. 6. An uredo cluster more magnified than in 3. Figs. 1, 2, and 3 after Miss Howell. Remainder by Mi
. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. —EUMYCETES—RUSTS 231. Fig. 67. Qover Sust. Uromyces Trifolii. (Hedw.) I,ev. 1. Aecidium spores; above,, two cluster cups in which the aecidiospores are found. 2. White clover leaf showing the distortions produced by the aecidium stage. 3. Red clover leaf showing clusters of uredo spores. 4. Uredo spores. 5. Teleuto spores. 6. An uredo cluster more magnified than in 3. Figs. 1, 2, and 3 after Miss Howell. Remainder by Miss King. How long the fungus has affected clover plants in this country jind especially in Iowa is not known. Poisonous properties. Clover rust has been suspected of being injurious to cattle. Dr. John R. Mohler of the Bureau of Animal Industry, writes as follows with reference to mycotic stomatitis: Several attempts have been made by the writer to determine the exact cause and also- to transmit the disease to other animals by direct inoculation, but with negative results. Suspicion, however, has been directed by various observers to the Uromyces and the red and black rusts that occur in clovers. These fungi cause very severe irritation of the lining membrane of the mouth, producing sometimes a catarrhal, at other times an aphthous, and occasionally an ulcerous stomatitis. Considerable irritation of the nose and throat is experienced when rusty oats and wheat are threshed. Virchow records a case of severe inflammation of the nose of an old lady in which he found a great deal of Puccinia 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 Pammel, L. H. (Louis Hermann), 1862-1931. Cedar Rapids, Ia. , The Torch Press
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