. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 350 UREDINEAE. Stems, leaf-stalks, and leaf-nervature often undergo one-sided thickening and curvature as a result of formation of aecidia. Wakker thus summarizes his observations on the anatomical changes in these malformed parts of Urtica: there is an en- largement of cells and an increase in the number of large inter- cellular spaces; no formation of coUenchyma, interfascicular cambium, and chlorophyll; a diminis
. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 350 UREDINEAE. Stems, leaf-stalks, and leaf-nervature often undergo one-sided thickening and curvature as a result of formation of aecidia. Wakker thus summarizes his observations on the anatomical changes in these malformed parts of Urtica: there is an en- largement of cells and an increase in the number of large inter- cellular spaces; no formation of coUenchyma, interfascicular cambium, and chlorophyll; a diminished formation of calcium oxalate; an orange coloration of the cell-sap; and a distension or rupture of the Fig. 1S5.—Puccinia caricis on Stinging Nettle. The aecidial cushions have caused swelling and distortion of steins and leaf-stalks, also swollen outgrowths on the leaves, (v. Tubeuf phot.) Klebahn and Magnus believe that there is a Puccinia on Carex acuta and G. Goodeiunighii related to an Aecidium on Bibes Grossularia, B. r'uhrwm, and R. aureum ; also a Puccinia on Garex riparia with an Aecidnom on JRibes nigmm. On this account Klebahn^ distinguishes Puce, caricis i., IK, and ill., agreeing respectively with P. PriiigsheiTniana Kleb., P. caricis (Schum.), and P. Magmisii Kleb. P. Schoeleriana Plowr. et Magn.^ (Britain). Uredo- and teleutospores on Garex arenaria; aecidia on Senecio Jacobaea. ^ Klebahn, Zeitschrift f. Pflanzeiikrankhtiten, 1892, 1894, and 1895. ^ Hedioigia, 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, 1862-1941; Smith, William G. London ; New York [etc. ] : Longmans, Green & co.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi
