LITERATURE CITED
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- Christensen, J. J. Physiologic specialization and parasitism of Helminthosporium sativum. Minn. Agr. Exp. Sta. Tech. Bull. 37. 1926.
- Christensen, J. J. & F. R. Davies. Does heterocaryosis account for the production of variants in Helminthosporium? (Abs.) Phytopath. 26: 89. 1936.
- Dickinson, S. The nature of saltation in Fusarium and Helminthosporium. Minn. Agr. Exp. Sta. Tech. Bull. 88. 1932.
- Eide, C. J. The pathogenicity and genetics of Gibberella Saubinetii (Mont.) Sacc. Minn. Agr. Exp. Sta. Tech. Bull. 106. 1935.
- Graham, T. W. Nuclear phenomena in Helminthosporium gramineum. Phytopath. 25: 284–286. 1935.
- Hansen, H. N. A phenomenon in Fungi Imperfecti. Sci. 82: 593. 1935.
- Hansen, H. N. & R. E. Smith. The mechanism of variation in imperfect fungi: Botrytis cinerea. Phytopath. 22: 953–964. 1932.
- Henry, A. W. Root-rots of wheat. Minn. Agr. Exp. Sta. Tech. Bull. 22. 1924.
- Kuribayaski, K. The ascigerous stage of Helminthosporium sativum. Trans. Sapporo Nat. Hist. Soc. 10: 138–145. 1929. (Abs.) Rev. Appi. Myc. 8: 438–439. 1929.
- Leonian, L. H. Attempts to induce “Mixochimaera” in Fusarium moniliforme. Phytopath. 20: 895–901. 1930.
- Shands, H. L., & J. G. Dickson. Variation in hyphal-tip cultures from conidia of Helminthosporium gramineum. Phytopath. 24: 559–560. 1934.
- Stakman, E. C., J. J. Christensen, C. J. Eide, & Bjorn Peturson. Mutation and hybridization in Ustilago Zeae. Minn. Agr. Exp. Sta. Tech. Bull. 65. 1929.
- Ullstrup, A. J. Studies on the variability of pathogenicity and cultural characters of Gibberella Saubinetii. Jour. Agr. Res. 051: 145–162. 1935.