Mycorrhizae on Liquidambar styraciflua L. are typically endotrophic. Mycorrhizal roots may or may not have a fungus mantle one to two cells thick. Turgid short roots average 2.5 mm long and may be blunt, beaded, straight, forked, or spatulate. Mycelia in the roots are intracellular in all cortical layers. Of 21 fungi tested in pure culture, mycorrhizae were formed by Cenococcum graniforme (Sow.) Ferd. & Winge, Rhizopogon roseolus (Corda) Hollos., Collybia velutipes (Curt. ex Fr.) Quél., Amanita muscaria Fr., Amanitopsis vaginata Fr., Marasmius candidus Fr., Inocybe rimosa (Fr.) Kumm., Boletus fraternus Peck, Cantharellus cibarius Fr., Boletus calopus Fr., Clitocybe multiceps Peck, Calvatia craniformis (Schw.) Fr., an unindentified basidiomycete, and an unidentified sphaeriaceous ascomycete.
Document Type: Journal Article
Plant Pathologists at the Southern Hardwoods Lab., Southern Forest Expt. Sta., Forest Service, U.S. Dept. Agric., Stoneville, Miss.