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Hygrophorus pustulatus [ Basidiomycetes > Agaricales > Tricholomataceae > Hygrophorus . . . ]
by Michael Kuo Hygrophorus pustulatus features a grayish brown cap, white gills that begin to run down the stem, and a whitish stem that is "pustulate" (covered with little brown dots that are reminiscent of the glandular dots found on the stems of many Suillus species). It is associated with conifers--especially with firs--in western North America and in the northern regions of central and eastern North America. Description: Ecology: Mycorrhizal with conifers--particularly with firs, but also reported in association with Engelmann spruce and with redwood; late summer and fall; common from the Rocky Mountains westward, and occasional in north-central and northeastern North America. Cap: 2-5 cm; convex when young, becoming broadly convex or slightly bell-shaped; slimy; with a slightly streaked appearance from stretched-out fibers beneath the slime; shiny when dried out; brown to gray-brown; lighter towards the margin. Gills: Beginning to run down the stem; close or nearly distant; white; waxy. Stem: 6-9 cm long; up to 1 cm thick; more or less equal; when very fresh and young sheathed with slime over the lower portion, but soon dry; whitish; covered with tiny brown points, especially over the upper half. Flesh: White; unchanging. Odor and Taste: Not distinctive. Spore Print: White. Microscopic Features: Spores 7-9 x 4-5 µ; smooth; elliptical; inamyloid. Gill tissue divergent, with cells 4-9 µ wide. Pileipellis an ixocutis with clamp connections present. REFERENCES: (Persoon, 1801) Fries, 1838. (Fries, 1821; Saccardo, 1887; Hesler & Smith, 1963; Bird & Grund, 1979; Largent, 1985; Phillips, 1991/2005; McNeil, 2006.) DBG RMNP 2008-049. Further Online Information: Hygrophorus pustulatus in Hesler & Smith (1963) |
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Cite this page as: Kuo, M. (2010, December). Hygrophorus pustulatus. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/hygrophorus_pustulatus.html |