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Lepiota magnispora Murrill
Life   Fungi   Basidiomycota   Agaricaceae   Lepiota

Lepiota magnispora
© Copyright Malcolm Storey 2011-2118 · 3
Lepiota magnispora

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California Fungi—Lepiota magnispora Lepiota magnispora
(Photo: © Michael Wood)

Lepiota magnispora Murrill
Mycologia 4: 237. 1912.

Common Name: none

Synonym: Lepiota ventriosospora Reid

Misapplied name: Lepiota clypeolaria (Bull.) Quél.

  • Pileus

    Cap 3-7 cm broad, egg-shaped, then campanulate, finally convex to nearly plane with a low umbo; surface dry, with buff-yellow to brownish scales shading to a smooth, brown disc; margin ragged with yellowish veil fragments; flesh thin, white to yellowish; odor and taste not distinctive.

  • Lamellae

    Gills free, close, narrow, white, cream-colored in age.

  • Stipe

    Stipe fragile, 5-13 cm tall, 0.3-0.8 cm thick, more or less equal, with coarse, yellowish-buff, shaggy, scales below the ring, faintly fibrillose, above; veil with floccose patches, leaving fragments on the cap margin and forming an evanescent, superior ring.

  • Spores

    Spores 17-22.5 x 4-5.5 µm, dextrinoid, smooth, fusiform. Spore print white.

  • Habitat

    Scattered to grouped under hardwoods & conifers; fruiting from late fall to mid-winter.

  • Edibility

    Unknown, but to be avoided. A number of small Lepiotas are known to contain the same type toxins as in Amanita phalloides , the death cap.

  • Comments

    Lepiota magnispora is a beautiful woodland species easily recognized by its coarsely scaled, yellowish-brown cap, appendiculate margin, shaggy stipe, free gills and white spore print. Unlike many Lepiotas, the partial veil does not form a well developed annulus.

    For years this species was misidentified locally as Lepiota clypeolaria . The two species are similar macroscopically, with L. magnispora having a darker disk to the pileus. They have distinct microscopic features.

  • References

    Arora, D. (1986). Mushrooms Demystified. Ten Speed Press: Berkeley, CA. 959 p.
    Breitenbach, J. & Kränzlin, F . (1991). Fungi of Switzerland. Volume 3: Boletes and Agarics (1st Part). Strobilomycetaceae, Boletaceae, Paxillaceae, Gomphidiaceae, Hygrophoraceae, Tricholomataceae, Polyporaceae (lamellate). Verlag Mykologia: Luzern, Switzerland. 361 p.
    Desjardin, D.E., Wood, M.G. & Stevens, F.A. (2015). California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.
    Murrill, W.A. (1912). The Agaricaceae of the Pacific coast—II. Mycologia 4(5): 231-262. ( Protologue )
    Noordeloos, M.E., Kuyper, T.W. & Vellinga, E.C. (2001). Flora Agaricina Neerlandica—Critical monographs on the families of agarics and boleti occurring in the Netherlands. Volume 5. Agaricaceae. A. A. Balkema: Lisse, Netherlands. 169 p.
    Siegel, N. & Schwarz, C. (2016). Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.
    Smith, H.V. (1966). Contributions toward a monograph on the genus Lepiota . I. Type studies in the genus Lepiota . Mycopathol. et Mycol. Appl. 29: 97-117.
    Vellinga, E.C. (2000). Notes on Lepiota and Leucoagaricus—Type studies on Lepiota magnispora , Lepiota barsii , and Agaricus americanus . Mycotaxon 76: 429-438.

  • Other Descriptions and Photos Main Photo

    (D=Description; I=Illustration; P=Photo; CP=Color Photo)

The Fungi of California
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