The illustrated dictionary of gardening Volume 1 ; a practical and scientific encyclopaedia of horticulture for gardeners and botanists

 
9781150827358: The illustrated dictionary of gardening Volume 1 ; a practical and scientific encyclopaedia of horticulture for gardeners and botanists
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1901 Excerpt: ...diseased source. To many gardeners the methods by which fungoid diseases are reproduced are absolutely unknown, and such visitations as Mildew of various kinds are attributed to chance, or oftener to weather influences. Then there is a still larger section who regard such diseases as "not proven," or their injurious properties as having been exaggerated. The gardener's chief difficulty with all Fungi is that his first acquaintance with any is usually when much mischief has been done. His first indications are when the Fungus has existed sufficiently long to produce outward characteristics--like the familiar Mildew on the Strawberry, the "Enst" on Chrysanthemum, or the Mushrooms on the roots of his orchard and landscape trees like Agaricus melleus (Armillaria mellea). Again, he does not seem able to reconcile the fact that such Fungi have forms of fruits, or spores, varying with the seasons; each has its part to play in the reproduction, or it may be in the extension of the infected area, of the species. Then there are certain small Fungi (called hetercecious) which require two plants--sometimes of widely different natural orders--to complete the cycle. The Gooseberry Bust (JEcidium grossulariw), whose orange-red patches are familiar upon the foliage and fruit of that plant, is but the Cluster-Cup stage of Puccinia Pringsheimiana, whose other stages are found upon Carex acuta and Carex Oooderumi; while the Bust found on the leaves and other parts of Barberries is likewise a stage Fungi--continued. in the life-history of a still more destructive Fungus known as Wheat Bust (Puccinia graminis). These are only two familiar examples of hetercecious Fungi. Parasitic Fungi reproduoe their kind in various ways. One of the commonest, however, is b...

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