. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. EUTHALLEPHYTA—EUMYCETES—SMUTS 219 Mr. W. A. Kelty informs me that the smartweed smut {Ustilago utriculosa) often produces severe irritation of the hands when corn is husked. TutETiACBAE, Schrot Mycelium becoming gelatinized in the tissues; the promycelium gives rise to the terminal cluster of elongated sporidia which fuse or do not fuse in pairs, producing secondary sporidia which may be alike or unlik6, or the sporidia germinate dir
. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. EUTHALLEPHYTA—EUMYCETES—SMUTS 219 Mr. W. A. Kelty informs me that the smartweed smut {Ustilago utriculosa) often produces severe irritation of the hands when corn is husked. TutETiACBAE, Schrot Mycelium becoming gelatinized in the tissues; the promycelium gives rise to the terminal cluster of elongated sporidia which fuse or do not fuse in pairs, producing secondary sporidia which may be alike or unlik6, or the sporidia germinate directly into infection threads. About 150 species, of which Tilletia is the most important genus; aside from the two species described below one species, T. secalis is found upon rye, T. hordei upon barley,, etc., Neovossia lowensis on Phragmites communis, Urocystis occulta on rye, Urocystis agropyri upon quack grass, and Bntyloma ranunculi upon Fig. 58. Wheat Bunt (_Til!etia foetens). At the left, a beardless variety with bunt kernels. At the right, a bearded variety with bunt kernels. From U. S. Dept. Agrl. Tilletia, Tul. Bunt Sori in various parts of the plant, usually in the ovaries, forming a dusty spore mass; spores 1-celled, formed singly in the ends of the mycelial threads, promycelium of germinating spore short with a terminal cluster of elongated sporidia. 53 species are reported for the genus. Tilletia foetens (B. & C.) Trel. Stinking Smut or Bunt Sori in the ovaries, wheat glumes more or less spreading; spores light to dark brown, oblong or sub-spherical, or spherical or sometimes 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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