. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. 262 MANUAL OP POISONOUS PLANTS Aspergilhs flavus. Link Hyphae arachnoid, white; the fertile erect, slightly cespitose; conidia 5-7 it in diameter, small, globose, vari-colored, slightly wart-like, collected about the white sub-globose, wart-like apex; apex finally becoming yellowish; sclerotium very small, dark. Aspergillus fumigatus. Fresenius Forms greenish or bluish gray masses on the surface of the substratum, conidiophores short
. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. 262 MANUAL OP POISONOUS PLANTS Aspergilhs flavus. Link Hyphae arachnoid, white; the fertile erect, slightly cespitose; conidia 5-7 it in diameter, small, globose, vari-colored, slightly wart-like, collected about the white sub-globose, wart-like apex; apex finally becoming yellowish; sclerotium very small, dark. Aspergillus fumigatus. Fresenius Forms greenish or bluish gray masses on the surface of the substratum, conidiophores short with a semi-spherical mass 8-20^ in diameter. Sterigmata bear the spherical conidia M in diameter, which are at first bluish green and later brown. Sclerotia unknown. Grows best at a temperature of 37-40° C. Distribution. Widely Fig. 89. Section of kidney of rab- bit showing mycelium of an Aspergillus. After Grawitz. Pathogenk properties. It has been known for some time that several species of Aspergillus are pathogenic for animals. In 1815 Mayer and Emmert found the fungus in the lungs of a jay. In 1826 it was reported in the long bones of a white stork by Heusinger, and numerous other cases in birds like the flamingo, duck, chicken, ostrich, and turkey, have been reported, especially in Europe. Kiihn, in 1893, furnished quite conclusive evidence that certain species of Aspergillus can produce necrosis and disease. Chantemesse, at the tenth International Congress in Berlin, called attention to a disease of pigeons resembling tuberculosis which he said was produced by an Aspergillus. Saxer attributed mycosis to an Aspergillus, and, according to Sticker, the disease may appear sporadic and endemic, the latter to persons who feed pigeons and to the hair combers in Paris. It is spontaneous in horses, cattle, dogs, and birds, and is sometimes quite epidemic in birds. The form of the disease when it occurs in the lung is callel Bronchopneumomycosis; it appears
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