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See also:MILDEW (0. Eng. meledeaw or mildeaw, explained as " See also:meal-See also:dew," cf. Ger. Me/zit/tau, with more See also:probability, as " See also:honey-dew," Goth. melith, honey, cf. See also:Lat. mel, Gr. µEX) , a popular name given to various See also:minute See also:fungi from their See also:appearance, and from the sudden, See also:dew-like manner of their occurrence . Like many other popular names of See also:plants, it is used to denote different See also:species which possess very small botanical See also:affinity . The See also:term is applied, not only to species belonging to various systematic See also:groups, but also to such as follow' different modes of See also:life . The See also:corn-See also:mildew, the See also:hop-mildew and the See also:vine-mildew are, for example, parasitic upon living plants, and the mildews of See also:damp See also:linen and of See also:paper are saprophytes (Gr. o-airpos, rotten), that is, they subsist on See also:matter which is already dead . As regards mil-dews in See also:general, the conditions of life and growth are mainly suitable See also:nutrition and dampness accompanied by a high temperature . The life See also:history of the same species of mildew frequently covers two or more generations, and these are often passed on hosts of different kinds . In some cases again the same See also:generation confines its attack to the same See also:kind of See also:host, while in others the same generation grows on various hosts (see FUNGI; Hop; and See also:WHEAT) . |
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