. 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. Plant diseases; Parasitic plants. 542 THE PATHOGENIC ALGAE. naked eye by bluish-green spots on sections of stems and rhizomes of the host (Fig. 319). These originate as follows: the species of Gunmra possess charac- teristic mucilage-secreting organs, in the form of fissures of the leaf-tip, collaters on the leaves, and glands on the stems. Merker^ found that these glands originated endogenously in the growing point between eac
. 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. Plant diseases; Parasitic plants. 542 THE PATHOGENIC ALGAE. naked eye by bluish-green spots on sections of stems and rhizomes of the host (Fig. 319). These originate as follows: the species of Gunmra possess charac- teristic mucilage-secreting organs, in the form of fissures of the leaf-tip, collaters on the leaves, and glands on the stems. Merker^ found that these glands originated endogenously in the growing point between each pair of leaves. The mature glands are covered only by the epidermis, and when activity commences the uppermost cells of the gland-tip, after swelling, become detached and Fic. :U'.i.âXostoc f/uniierae. Longi- i. i â i. i- /tt'' )a\ tudinal .section through the apex of a COnVertcd HltO SlmiC (^ Ig. oiU). stem of Guiinera manicata. The punc- tti, ⢠j. i ^.i ⢠i ⢠⢠j- i tated spots indicate the position of U Itimatcly the epidcrmis IS rupturcd ..''-colonies. (v. Tubeuf del.) t ^^ r j-i 1 ⢠J ^ by the pressure ot the shme, and the remaining glandular cells are in turn rapidly transformed into the same Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Tubeuf, Karl, Freiherr von, 1862-. London Longman's, Green
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectparasit, bookyear1897
