Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplant00tube Year: 1897 Fio. 34.—Ci/Atopus canditli'n. B, Conidiophores isolated from the cushion ; the conidia or spomiigia are united by intermediate cells. C, Sporangia breaking up to form swarm-spores. D, Swarm-sporos escaping. E, Swarm-spores in motile condition. F, Swarm-spores come to and germinating. 0, Two germ-tubes entering a stoma of Lcpidiuni scUivam; the stoma is shown from the inside, so that the spores


Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplant00tube Year: 1897 Fio. 34.—Ci/Atopus canditli'n. B, Conidiophores isolated from the cushion ; the conidia or spomiigia are united by intermediate cells. C, Sporangia breaking up to form swarm-spores. D, Swarm-sporos escaping. E, Swarm-spores in motile condition. F, Swarm-spores come to and germinating. 0, Two germ-tubes entering a stoma of Lcpidiuni scUivam; the stoma is shown from the inside, so that the spores from which the germ-tubes arise are on the outer surface and unseen. (After De Bary.) Fio. 35.—Flower of Radish (Raphanns sativus) hypartrophied by Ci/slojms auididi'.s. The much-enlarged ovary stands out in the centre. The anthers are leaf-like ; the petals are much enlarged and hang downwards ; the sepals are somewhat enlarged. (Specimen from Botanical Museimi of Erlangen, and photographed by Dr. Brims.) The couidiai cushions form thick white stripes with a porcellaneous appearance, by which they are easily distinguished from the cushions of Feronospora parasitica often present on the same plant.


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