|Major Groups > Cup Fungi > Disciotis venosa|
by Michael Kuo
Believe it or not, this cup fungus is a close relative of the
Ecology: Probably saprobic, but since it is closely related to the morels, possibly at least facultatively mycorrhizal; found primarily under hardwoods, in beech-maple and oak-hickory forests in eastern North America, and in riparian woods in the west; growing alone, scattered, or gregariously; spring (usually during morel season); widely distributed in North America.
Fruiting Body: 4-21 cm across; shaped more or less like a cup when young, often with a curled-in edge; in age flattening and becoming irregularly saucer-shaped; upper surface yellowish brown to brown or reddish brown, bald; smooth at first but soon becoming wrinkled or veined, especially over the center; undersurface whitish to pale tan, often dotted with tiny brown scales, rough or finely hairy; pinched together in the center to form a very short pseudo-stem that is buried in the ground; flesh brittle and pale brownish.
Microscopic Features: Spores 22-25+ x 12-15 µ; smooth; elliptical; without oil droplets; contents homogeneous. Asci 8-spored; not bluing in Melzer's reagent or IKI. Paraphyses septate; apices clavate to subcapitate; to about 10 µ wide; with brownish contents.
REFERENCES: (Persoon, 1801) Arnould, 1893. (Fries, 1822; Saccardo, 1889; Larson, 1980/2003; Smith, Smith & Weber, 1981; Breitenbach & Krânzlin, 1984; Arora, 1986; Phillips, 1991/2005; Lincoff, 1992; Weber, 1995; Roody, 2003; Kuo, 2005.) Herb. Kuo 05299507, 04170501, 05090601, 05090603, 04270801.
Further Online Information:
Disciotis venosa at Roger's Mushrooms
Cite this page as:
Kuo, M. (2006, April). Disciotis venosa. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/disciotis_venosa.html.