. Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm. nd up one or several outgrowths, or stroma,with a knob-like end of a yellowish-brown color. In the hyphal tissue,which comprises the knob-like portion of the stroma, flask-shaped peri-thecia are formed with short necks and slightly protruding ostioles. Theasci contained in these perithecia are elongated and contain eight needle-shaped ascospores, which measure 60 to 70/i in length, and issue from thetip of the ascus by a small opening. These ascospores bud off condio- 28 POISON
. Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm. nd up one or several outgrowths, or stroma,with a knob-like end of a yellowish-brown color. In the hyphal tissue,which comprises the knob-like portion of the stroma, flask-shaped peri-thecia are formed with short necks and slightly protruding ostioles. Theasci contained in these perithecia are elongated and contain eight needle-shaped ascospores, which measure 60 to 70/i in length, and issue from thetip of the ascus by a small opening. These ascospores bud off condio- 28 POISONOUS FUNGI AND OTHER SPORE-BEARING PLANTS 29 spores, which are capable of infecting the ovaries of rye plants, whichhave started their growth toward maturity the following season. Chemical Nature of Ergot.—The ergot spurs are used medicinallyunder police regulations, for they are dangerous and poisonous. Ergotcontains to per cent, of ergotinin, as an amorphous compound,and the physiologically active alkaloid ergotoxin or hydroergotinin(C35H41O6N5). When taken in sufficient amounts ergot causes serious. Fig. 7.—Cait No. 2 after being fed diseased paspalum heads some days. Notestifl appearance with legs rather wide apart to assist in standing. {After Brown, H. Ranck, E. M.: Forage poisoning due to Claviceps Paspali on Paspalum. TechnicalBulletin No. 6, Mississippi Agricultural Experiment Station, 1915, p. 21.) poisoning of the domestic animals and man. Extensive outbreaks ofergotism have occurred in the United States. In the Baltic provinces ofGermany and Russia, the peasants frequently eat bread made out offlour in which ergot spurs have been ground. They suffer from gangrenousaffections of the extremities with a loss of the hair, teeth and finger nervous form of ergotism has also been prevalent. Cattle eating ergotedgrain show similar gangrenous and nervous symptoms, the loss of hoofs,tails and horns. Ergot can be controlled to some extent by the sele
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