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

Lepiota clypeolaria (Bull. ex Fr.) P. Kumm.
shaggy-stalked parasol
Agaricaceae

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

Introduction to the Macrofungi

© Michael Beug  Email the photographer   (Photo ID #18553)

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Distribution of Lepiota clypeolaria
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Species Information

Summary:
diagnostic features are dry cap with yellow-brown to reddish brown scales and smooth darker center on a whitish background (but with a less distinct "eye" than in Lepiota magnispora); ragged or shaggy appearance of cap margin and stem, free whitish gills, absence of a distinct ring, white spore deposit, and microscopic characters; Lepiota clypeolaria may represent a complex; there is frequent confusion with Lepiota magnispora = Lepiota ventriosospora according to Vellinga(1): the illustrations in Arora(1) and Lincoff(2) for L. clypeolaria are of L. magnispora; Vellinga(1) says both L. clypeolaria and L. magnispora occur throughout the United States but L. magnispora is the more common of the two; L. magnispora is more common in the west and L. clypeolaria in the east [of the United States], (Vellinga(11)); found at least BC, WA, OR, northern CA, (Else Vellinga, pers. comm.), Breitenbach(4) give distribution as North America, Europe, Asia, North Africa
Cap:
3.5-8cm across, hemispheric - bell-shaped then conic - bell-shaped, eventually broadly conic with obtuse umbo; center ocher-brown to reddish brown, toward the margin the cuticle splitting to form concentric, erect, fine, ocher-brown squamules [scales], cream-colored between the scales; center smooth to scurfy, marginal zone fibrillose, "margin floccose when young, striate and split when old", cuticle peelable to center, (Breitenbach)
Flesh:
thin; whitish to white; stem cortex weakly yellowing, browning in the stem base, (Breitenbach)
Gills:
free, 45-58 reaching stem, broad, 1-3 subgills between neighboring gills; "hygrophanous, gray-white when moist, white when dry"; "edges slightly crenate-floccose", (Breitenbach)
Stem:
5-10cm x 0.4-0.8cm, equal, thickened to club-shaped toward base, rigid, hollow, fragile; whitish, straw-yellow to ocher-yellow when old; whitish cottony at top, increasingly whitish cottony-fibrillose in lower part, "sheathed with whitish woolly to cottony zones toward the base", (Breitenbach)
Veil:
cottony, leaving remnants on cap margin or a slight cottony-fibrillose ring
Odor:
spicy-fungoid, (Breitenbach)
Taste:
mild, fungoid, (Breitenbach)
Microscopic spores:
spores 11.4-16.1 x 4.5-6.3 microns, elliptic-navicular [elliptic - boat-shaped], smooth, dextrinoid; basidia (2)4-spored, 35-47 x 11-13 microns, clavate, with basal clamp connection; pleurocystidia not seen, cheilocystidia 22-35 x 10-16 microns, vesicular to clavate; cap cuticle "of prostrate to exserted hyphal ends" 90-420 x 8-12 microns, "interspersed with clavate to cylindric-flexuous cells at their base, all with light brown membranal pigmentation, most septa with clamps", (Breitenbach), spores in side view 11.0-18.5 x (4.0)4.5-6.0(6.5) microns, slightly convex adaxial and abaxial side, and a shallow suprahilar depression may be present, giving an amygdaloid-fusiform appearance, (Vellinga(1) with illustration of spores)
Spore deposit:
cream-yellow (Breitenbach)

Habitat / Range

single to gregarious in hardwood or mixed hardwood-conifer forests, on leaf litter or on soil, summer to fall, (Breitenbach for Switzerland)

Taxonomic and Nomenclatural Links

Additional Range and Status Information Links

Edibility

poisonous (Schalkwijk-Barendsen)

Additional Photo Sources

Related Databases

Species References

Breitenbach(4)*, Arora(1), Vellinga(1), Vellinga(11), Sieger(1), Phillips(1)*, Lincoff(2), Lincoff(1)*, Schalkwijk-Barendsen(1)*, Kibby(1)*, Miller(14)*, Courtecuisse(1)*, Barron(1)* (some of these illustrations are likely L. magnispora however), Trudell(

References for the fungi

General References