|Major Groups > Gilled Mushrooms > Pale-Spored > Waxy Caps > Hygrophorus pustulatus|
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.
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.
Further Online Information:
Cite this page as:
Kuo, M. (2010, December). Hygrophorus pustulatus. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/hygrophorus_pustulatus.html