Mycoflora of the genus Rosa

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  • A total of thirty-five species of fungi assigned to twenty-eight genera has been isolated from various parts of plants of genus Rosa in the Ottawa area.Common saprophytic fungi recovered were species of Alternaria, Botrytis, Fusarium, Trichoderma, Pullularia, Penicillium and Aspergillus. Parasitic fungi, known to cause important diseases of rose, were also found including Seimatosporium lichenicola (Cda) Shoemaker and E. Muller (die back), Coniothyrium rosarum Cke. and Harkn. (Canker), Marssonina rosae (Lib.) Lind. (leaf spot), Sphaerotheca sp. (powdery mildew). Species not previously reported as parasites on Rosa have been recovered from this host, namely; Nigrospora sphaerica (Sacc.) Mason, Microascus schumacheri (Hans.) Curzi, Gonatobotrys simplex Cda, and Pseudozythia pusilla Hoehn. Other noteworthy fungi isolated from various plant parts were species of Chaetomium, Curvularia, Cytospora, Glomerella, Haplosporella and Ulocladium.Investigation of numerous foreign seeds from the same latitude as Ottawa (about 45 N) yielded no additional records and a limited variety of very common saprophytic species were obtained.

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  • Copyright ¬© 1968 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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  • 1968

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