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Tricholoma sejunctum [ Basidiomycetes > Agaricales > Tricholomataceae > Tricholoma . . . ] by Michael Kuo In my area (central Illinois), Tricholoma sejunctum is the most common Tricholoma species, typically fruiting in early fall, just as the leaves are beginning to change. The distinguishing features of this widespread species include its cap, which is yellowish to yellowish olive with darker appressed fibers (especially over the center); its gills, which are white at first but later develop yellow shades, especially towards the cap margin; and its strongly mealy taste and smell. Similar Tricholoma species either lack the dark fibers on the cap, or have completely yellow (or completely white) gills from youth to maturity. Tricholoma sejunctum may be poisonous; I do not recommend it as an edible. The strongly mealy taste is a deterrent, anyway. Description: Ecology: Mycorrhizal with hardwoods or conifers; growing scattered or gregariously; widely distributed; late summer and fall. Cap: 5-7.5 cm; broadly convex, flat, or with a central knob; sticky or dry; yellowish to yellowish olive; with dark, radiating, appressed fibers (especially over the center); the margin often somewhat inrolled when young. Gills: Attached to the stem by a notch; close; white, developing yellow tinges near the cap margin in age. Stem: 5-10 cm long; 1-2 cm thick; equal; smooth; dry; whitish or with yellow tinges. Flesh: White; not changing on exposure. Taste: Mealy (apparently bitter in some collections); odor mealy. Spore Print: White. Microscopic Features: Spores 5-7.5 x 4-6 µ; smooth; elliptical to oval; inamyloid. Cystidia absent. Clamp connections absent. REFERENCES: (Fries) Quélet. (Smith, Smith & Weber, 1979; Ovrebo, 1980; Arora, 1986; Lincoff, 1992; Shanks, 1994.) Herb. Kuo 10020303. Further Online Information: Tricholoma sejunctum at BC Mushrooms |
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Cite this page as: Kuo, M. (2004, December). Tricholoma sejunctum. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/tricholoma_sejunctum.html |