E-Flora BC: Electronic Atlas of the Flora of British Columbia

Ampulloclitocybe avellaneialba
No common name

Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.

Introduction to the Macrofungi

© Michael Beug  Email the photographer   (Photo ID #89720)

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Distribution of Ampulloclitocybe avellaneialba
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Species Information

Features include olive-brown or grayish brown, flat to funnel-shaped cap that often has a shallowly ribbed margin when mature, close whitish gills, brownish club-shaped stem, mild odor and taste, habitat on or near rotting logs, white spore deposit, and spindle-shaped spores.

It has been found at least in WA, OR, ID, CA, and there is voucher from BC at the University of British Columbia.
"decurrent, close, narrow; whitish to cream", (Phillips), long-decurrent, when old with decurrent ridges running down stem, close or rarely subdistant, narrow to moderately broad, interveined at times, "frequently forked when young but rarely so when expanded"; whitish to cream-colored ("cartridge buff" or "pale pinkish buff"), (Bigelow)
5-18cm x 1-3cm, enlarged toward the base, stuffed, sometimes curved; brownish; finely felty and furrowed, (Phillips), 5-13(18)cm x 0.9-1.7(3)cm at top, "equal or either end enlarged", stem stuffed, slightly curved at times; light olivaceous brown; fibrillose-striate, basal tomentum sparse, (Bigelow)
not distinctive (Phillips, Bigelow)
not distinctive (Phillips, Bigelow)
Microscopic spores:
spores 8-11 x 4-5.5 microns, broadly spindle-shaped, smooth, inamyloid, (Phillips), spores (6)8-10(11) x 4-5.5 microns, broadly fusoid, inequilateral in side view, smooth, inamyloid; basidia mostly 4-spored, occasionally 1-, 2-, or 3-spored, 24-36(43) x 6-8.5 microns; [pleurocystidia and cheilocystidia presumably absent]; clamp connections present, (Bigelow)
Spore deposit:
white (Phillips, Bigelow)

Habitat / Range

"in groups or clusters on or near rotting logs and debris of alder and conifers", (Phillips), gregarious on very decayed logs and other woody debris (often buried) under conifers, September into December, (Bigelow), fall, winter

Synonyms and Alternate Names

Clitocybe avellaneialba Murrill

Taxonomic and Nomenclatural Links

Genetic information (NCBI Taxonomy Database)
Taxonomic Information from the World Flora Online
Index Fungorium
Taxonomic reference: Ann. bot. fenn. 40(3): 218. 2003 [as ''avellaneoalba'']; Clitocybe avellaneialba Murrill Mycologia 5: 207. 1913

Additional Range and Status Information Links


no (Phillips)

Additional Photo Sources

Related Databases

Species References

Bigelow(5) (as Clitocybe avellaneialba), Phillips(1)* (as Clitocybe avellaneialba), Lincoff(2)* (as Clitocybe avellaneialba), Ammirati(1)* (as Clitocybe avellaneialba), Arora(1) (as Clitocybe avellaneialba), Trudell(4)* (as Clitocybe avellaneialba); Antonin(2)

References for the fungi

General References