Tuberculate Mycorrhizae of Douglas-Fir
Abstract:A tuberculate mycorrhiza formed by two fungi in combination commonly occurs on Pseudotsuga menziesii vars. menziesii and glauca in the western coastal states and British Columbia. One fungus is a white Basidiomycete that infects a rootlet to form a compact, prolifically branched, ectotrophic mycorrhiza consisting of 20 to 2,000 mycorrhizal tips. The other is a Phycomycete that covers the aggregate of mycorrhizal tips with a dense, dark sheath. The two fungi spread together by means of rhizomorphs having a core of white Basidiomycete sheathed with dark Phycomycete.
Document Type: Journal Article
Affiliations: Researsh Forester, Pacific Northwest Forest and Range Expt. Sta., Forest Service, U. S. Dept. of Agric.
Publication date: March 1, 1965
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