Diseases of plants induced by Diseases of plants induced by cryptogamuc parasites; introduction to the study of pathogenic fungi, slime-fungi, bacteria, and algae. English ed. by William G. Smith diseasesofplants00tubeuoft Year: 1897 GYMN0SP0RANGIU5I. 395 The strikingly characteristic cleavage of the wood l»y the overgrown elements of the medullary rays and the wood- parenchyma, in the case of the twig-inhabiting form, will be seen from the figures (Fig. 229). As already noticed, the sporogenous cushions are generally formed on one side. After

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