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Spathularia flavida

[ Ascomycetes > Helotiales > Cudoniaceae > Spathularia ... ]

by Michael Kuo

This funky, spatula-shaped mushroom is separated from the similar Spathulariopsis velutipes by virtue of its smooth (rather than fuzzy) and yellowish (rather than brown) stem. Under the microscope, its longer spores also distinguish it. As with other members of the Cudoniaceae family, the spores are long and needle-like, and are packed into the asci side by side. Spathularia flavida appears to be restricted to the conifer forests of northern and montane North America, where it tends to grow in clusters or rings.


Ecology: Presumably saprobic; growing gregariously or in clusters under conifers; summer and fall (winter in California); northern and montane North America.

Fruiting Body: Roughly spatula-shaped, with a flattened head portion at the top of a stem, usually running down the stem on either side of it; the head portion up to 3 cm across, light yellow, whitish, or pale yellowish brown, fairly smooth; stem up to 8 cm long and 1 cm thick, whitish to yellowish (rarely brownish), not fuzzy, with white to yellow basal mycelium. Flesh insubstantial, whitish. Odor none.

Microscopic Features: Spores 30-95 x 1.5-3 µ; needle-shaped; smooth; often septate. Paraphyses forked, with curled tips.

REFERENCES: Persoon, 1794. (Fries, 1821; Saccardo, 1889; Smith, Smith & Weber, 1981; Breitenbach & Kränzlin, 1984; Arora, 1986; Barron, 1999; McNeil, 2006.) Herb. Kuo 09080101.

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Spathularia flavida

Spathularia flavida

Spathularia flavida

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Kuo, M. (2005, January). Spathularia flavida. Retrieved from the MushroomExpert.Com Web site: