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Pleurotus dryinus

[ Basidiomycetes > Agaricales > Pleurotaceae > Pleurotus . . . ]

by Michael Kuo

This distinctive species of Pleurotus has a sturdy, fairly central stem and a partial veil that leaves remnants on the margin of the cap and the stem. It is not at all "pleurotoid," despite belonging to the genus that provides the term. When the partial veil remnants are worn away (which is fairly often), it can usually be separated from similar mushrooms like Hypsizygus ulmarius by its densely fuzzy cap and stem.

Pleurotus dryinus is edible, but not as highly rated as other species of Pleurotus; apparently its consistency is rather tough. I have not tried it.

Description:

Ecology: Saprobic; growing alone or in small clusters on dead and living wood of hardwoods (especially oaks and beech); summer and fall (winter in coastal California); widely distributed in North America.

Cap: 4-12 cm; convex, becoming broadly convex; circular in outline; hairy; whitish beneath the grayish to pale brownish hairs, often yellowing with age; the margin inrolled when young, hung with partial veil remnants.

Gills: Running down the stem; close; whitish, yellowing with age.

Stem: 4-10 cm long; up to 3.5 cm thick; tough; usually a little off-center; the lower portion with a densely fuzzy sheath that terminates in an ephemeral ring; above the ring smooth or with ridges resulting from the gills; whitish, yellowing with age.

Flesh: Thick; tough; whitish.

Taste: Mild; odor mild.

Spore Print: White.

Microscopic Features: Spores 9-15 x 3.5-5 µ; smooth; elliptical; inamyloid.

REFERENCES: (Persoon, 1800) Kummer, 1871. (Smith, Smith & Weber, 1979; Weber & Smith, 1985; Arora, 1986; Phillips, 1991/2005; Lincoff, 1992; Metzler & Metzler, 1992; Zervakis & Balis, 1996; Barron, 1999; Roody, 2003; Petersen et al., Date NR.) Herb. Kuo 10010415.

Further Online Information:

Pleurotus dryinus at Univ. Tennessee
Pleurotus dryinus at Roger's Mushrooms
Pleurotus dryinus at Fungi of Poland

 

Pleurotus dryinus

Pleurotus dryinus

Pleurotus dryinus

Pleurotus dryinus

Pleurotus dryinus



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Cite this page as:

Kuo, M. (2005, February). Pleurotus dryinus. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/pleurotus_dryinus.html