. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. 158 ASCOMYCETES. contain only conidia, whereas those on Alnvs-incana are said by Sadebeck to contain only ascospores, unless on very rare occasions. In the lower and higher Alps, although both species of alder are not infrequently found together, yet the Rvoascus is found only on Alniis incana, and no species occurs on A. Fig. 53.—Exoascus abii-incanae in catkins of Alnus incana. Many of the scales are dev


. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. 158 ASCOMYCETES. contain only conidia, whereas those on Alnvs-incana are said by Sadebeck to contain only ascospores, unless on very rare occasions. In the lower and higher Alps, although both species of alder are not infrequently found together, yet the Rvoascus is found only on Alniis incana, and no species occurs on A. Fig. 53.—Exoascus abii-incanae in catkins of Alnus incana. Many of the scales are developed as elongated red soft tongue-like structures, on which the asci arc produced as a whitish coating, (v. Tubeuf phot.) Exoascus epiphyllus Sad. (Ur. horealis Joh.^) The witches'- broorn fungus of the white alder {Alnus incana.) The author2 was the first to describe and figure this form of disease in 1884; and Sadebeck recently succeeded in pro- ^ K. Sven. Vet. Akad. 18S5 and 1887. Tubeuf, Botan. CentralU., 1890. - Tubeuf, Beitrage z. KennUms d. Baun\h'anJcheiten, 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. London, New York [etc. ] : Longmans, Green & co.


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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi