Microbes, ferments and moulds / by E. L. Trouessart.

  • Trouessart, E.-L. (Edouard-Louis), 1842-1927.
Date:
1889
Catalogue details

Licence: Public Domain Mark

Credit: Microbes, ferments and moulds / by E. L. Trouessart. Source: Wellcome Collection.

    34/388 (page 14)
    microbes, properly so called, are still often assigned to the class of fungi. We shall speak of them separately, and give our reasons for distinguishing them from true fungi. Hymenomycetes are the fungi which possess the hymenium or umbrella; all the edible species are included in this class, together with a great number of extremely poisonous species. They are generally of considerable size, and only a few among them are true parasites; they do not, therefore, enter into the plan of this work, and, in spite of the interest they present, we shall content ourselves with the brief notice of them we have just given. The other groups must, however, detain us longer. II. The Basidiomycetes : UredinejE, the Rust of Wheat and Grasses. The name of cereal rust is given to a parasitic affection caused by a minute microscopic fungus which is developed on the leaves of wild and cultivated grasses. This rust appears in the form of orange patches, which gradually spread over the blades of wheat and other grasses, and its common name is due to this colour. Many of the plants belonging to other families are attacked by analogous parasites, and these fungi are all assigned by naturalists to the genus Ureclo, and to the family of the Basidio- mycetes or UredinecB.