Dicke, Robert J. (ed.) / Transactions of the Wisconsin Academy of Sciences, Arts and Letters
volume XLIV (1955)
Greene, H. C.
Notes on Wisconsin parasitic fungi. XXI, pp. 29-43 ff. PDF (5.6 MB)
38 Wisconsin Academy of Sciences, Arts and Letters [Vol. 44 SEPTORIA OENOTHERAE West. on Oenothera parviflora. Dunn Co., Elk Mound, September 5, 1953. Coil. D. E. Meyer. SEPTORIA SONCHIFOLIA Cke. on Sonchus oleraceus. Columbia Co., near Lodi, August 17. SEPTORIA HELIANTHI EU. & Kell. on Helianthus petiolaris. Sauk Co., near Lone Rock, August 14, 1953. SEPTORIA PSILOSTEGA Eli. & Mart. on Galium trifidum. Dane Co., Madison, September 4. The differentiation between Galium tinctorium and G. trifldum in the latest manuals is scarcely satisfactory and the above determination is made because the specimen in question seems to have a predominance of the characteristics ascribed to the latter. HAINESIA LYTHRI (Desm.) Hoehn. on Oenothera pilosella Raf. Dane Co., Madison, June 24. On Potentilla simplex (canadensis). Waukesha Co., Nashotah, July 13. GLOEOSPORIUM BRUNNEO-MACULATUM H. C. Greene on Trillium recurvatum. Green Co., Oakly, July 9. COLLETOTRICHTJM GRAMINICOLA (Ces.) Wils. on Agrostis alba. Dane Co., Madison, August 19. Sprague in his "Diseases of Cereals and Grasses in North America" indicates Wisconsin as a host locality, but there is no earlier specimen in our herbarium and Davis did not report this fungus on red top. ELLISIELLA CAUDATA (Pk.) :Sacc. on Sporobolus asper. Grant Co., Nelson Dewey Memorial Park near Cassville, August 14, 1953. OVULARIA PTJSILLA (TJng.) Sacc. & D. Sacc. (0. pulchelia (Ces.) Sacc.) on Hierochloe odorata. Columbia Co., Pacific Twp. near Swan Lake. July 27. The closely related Phalaris arundirtacea commonly bears Ovularia hordei (Cay.) Sprague, but this specimen does not have the serpentine conidiophores which characterize the latter. RAMULARIA CANADENSIS Eli. & Ev. on Carex sartwellii. Dane Co., Madison, August 1. On Carex trichocarpa. Lafayette Co., Yellowstone Lake near Fayette, August 25. On the basis of the material that I have examined, it would seem that this would be better referred to Didymaria. RAMULARIA MINAX J. J. Davis on Solidago altissima. Grant Co., Nelson Dewey Memorial Park near Cassville, August 3. SCOLECOTRICHUM GRAMINIS Fcki. on Alopecurns pratensis. Monroe Co., Melvina, June 20, 1940. CoIl. L. H. Shinners. HELMINTHOSPORIUM GIGANTETJM Heald & Wolf on Phalaris arundinacea, Iowa Co., 3 miles west of Mazomanie, August 10. On Leersia oryzoides. Dane Co., Madison, August 29. In the latter specimen some of the conidia measured as much as 350 x
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