. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. 394 UREDINEAE. marked swelling on one side only (Fig. 227). In the needle- form the swelling results from increased growth of the rind, with a simultaneous decrease of growth of the wood; in the twig-form the growth of both wood and rind is much increased. With the twig-inhabiting form the medullary rays and wood- parenchyma increase, and at the same time become filled with mycelium (Fig. 228); whereas with the other
. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. 394 UREDINEAE. marked swelling on one side only (Fig. 227). In the needle- form the swelling results from increased growth of the rind, with a simultaneous decrease of growth of the wood; in the twig-form the growth of both wood and rind is much increased. With the twig-inhabiting form the medullary rays and wood- parenchyma increase, and at the same time become filled with mycelium (Fig. 228); whereas with the other form the medullary rays are at most only somewhat broader, and no mycelium can be found in the wood. The greatly swollen rind in the case. Fio. 227.—Section of a nine-year twig of Juniper attacked by Gymnosjiorangium. The rind under the spore-cushion is much thickened ; the wood towards the same side is much broken up by tracts of parenchyma. (After Woernle.). 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-; Smith, William G. London, New York [etc. ] Longmans, Green & co.
Size: 1479px × 1690px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi
