LITERATURE CITED
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- Bisby, G. R. 1945. An introduction to the taxonomy and nomenclature of fungi. 117 pp. London.
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- Clayton, E. E., and Stevenson, J. A. 1943. Peronospora tabacina Adam, the organism causing blue mold (downy mildew) disease of tobacco. Phytopath. 33: 101–113.
- Farlow, W. G. 1876. On the American grapevine mildew. Bul. Bussey Inst. 1: 415–429.
- Fitzpatrick, H. M. 1930. The lower fungi. Phycomycetes. 331 pp., illus. New York.
- Gäumann, E. 1923. Beiträge zu einer Monographie der Gattung Peronospora Corda. Beitr. z. Kryptogamenflora der Schweiz. 5 (4): 1–360.
- Ramsbottom, J. 1942. Conclusions and prospects. Trans. Brit. Myc. Soc. 25: 436–439.
- Shaw, C. G. Downy mildew of Urtica in the United States. Mycologia: 197–201. 1949.
- Wakefield, E. M., and Moore, W. C. 1936. Notes on certain changes in nomenclature in the second edition of the list of common names of British plant diseases. Trans. Brit. Mycol. Soc. 20: 97–109.
- Wilson, G. W. 1914. Studies in North American Peronosporales—VI. Notes on miscellaneous species. Mycologia 6: 192–210.
- Yarwood, C. E. 1943. Onion downy mildew. Hilgardia 14: 595–691.