@article {Hansbrough:1 April 1934:0022-1201:452, author = "Hansbrough, J. R.", title = "Occurrence and Parasitism of Aleurodiscus Amorphus in North America", journal = "Journal of Forestry", volume = "32", year = "1 April 1934", abstract = "In December, 1930, Mr. Hansbrough found an area in the Mount Hood National Forest, Oregon, where the fungus, Aleurodiscus amorphus (Pers.) Rabenh, 2 was associated with a definite canker (Figure 1) on a high percentage of the stand of suppressed lowland white fir (Abies grandis Lindl.). The infection was so uniformly severe and the cankers were so conspicuous that a brief study of the occurrence and apparent parasitism of the fungus was considered advisable.", pages = "452-458(7)", url = "http://www.ingentaconnect.com/content/saf/jof/1934/00000032/00000004/art00014" }