. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fig. 209.—Chrysomyxa rhodcdendrl. Twig of Rhododendron hirsvXum with sori of nredo- Fig. 210.—Chrysotnyxa rhododendri on Rho- spores on the lower epidermis, causing dis- ttodendron Uredospore-sori in coloured spots on the upper, (v. Tubeuf September as elongated white stripes on the del.) stem below the leaves, (v. Tubeuf deL) The uredospores are yellow and ovoid, with granular protuber- ances on thei
. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fig. 209.—Chrysomyxa rhodcdendrl. Twig of Rhododendron hirsvXum with sori of nredo- Fig. 210.—Chrysotnyxa rhododendri on Rho- spores on the lower epidermis, causing dis- ttodendron Uredospore-sori in coloured spots on the upper, (v. Tubeuf September as elongated white stripes on the del.) stem below the leaves, (v. Tubeuf deL) The uredospores are yellow and ovoid, with granular protuber- ances on their coats; they are developed in series from the sori.^ The disease may be further propagated during the same year by the uredospores. In districts where spruce does not occur, it is probable that these spores hibernate, and in the following spring produce germ-tubes which infect other alpine-rose leaves. It frequently happens that whole forests of spruce are so attacked by this fungus that many of the trees retain only a few healthy needles. Diseased needles die and fall in the summer of attack, so that the ttees may be almost wholly stripped, and thereby suffer considerable damage. Ohr. ledi (Alb. et Schwein.)^ ( America). This fungus ^ Raoiborski regards the Uredo as a Gaeoma-ioxm. '^De Bary, Bolan. Zeitung, 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.
Size: 1080px × 2314px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi
