|California Fungi—Crucibulum laeve
(Photo: © Mark Steinmetz)
(Huds.: Relh) Kambly
Univ. of Iowa Stud. Nat. Hist. 17(4): 167. 1936.
Bird's Nest Fungus
Fruiting body cup-shaped, sessile, tough, persistent, 3-7 mm high, 3-6 mm wide, globose, becoming cylindrical, narrowed at the base, flaring at the mouth, the latter covered with an ochraceous, velvety, evanescent lid (epiphragm); outer surface roughened to finely wrinkled, buff-brown, inner surface smooth, pale grey to light-brown; peridioles (eggs) 1-2 mm broad, flattened, white to pallid, connected to the cup by a thin cord (funiculus).
Spores 7.5-10 x 4-6 µm, elliptical, smooth, nonamyloid.
Scattered to clustered on soil and woody debris, e.g. sticks, rotting plywood, etc.
Unknown, but too small and tough to be of culinary value.
Bird's nest fungi are represented by about six or seven species in the San Francsico Bay Area with
being one of the most likely to be encountered. It is distinguished by a buff-brown, thin-walled, flaring cup with a smooth interior, and pallid to white eggs that are connected to the cup via a thin cord. Related local bird's nests include species of
, all of which have thicker-walled cups. In addition, the cups and peridioles of
species are darker (grey-brown to dark-grey), while
species have peridioles which are embedded in a gelatinous matrix.
(1986). Mushrooms Demystified. Ten Speed Press: Berkeley, CA. 959 p.
Breitenbach, J. & Kränzlin, F.
(1986). Fungi of Switzerland. Volume 2: Non-Gilled Fungi. Verlag Mykologia: Luzern, Switzerland. 412 p.
Brodie, Harold J.
(1975). The Bird's Nest Fungi. University of Toronto Press: Toronto, Canada. 200 p.
(1998). Flora Mycologica Iberica. Vol. 3. Gasteromycetes, I. Lycoperdales, Nidulariales, Phallales, Sclerodermatales, Tulostomatales. J. Cramer: Berlin, Germany. 271 p.
Desjardin, D.E., Wood, M.G. & Stevens, F.A.
(2015). California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.
Ellis, M.B. & Ellis, J.P.
(1990). Fungi without Gills (Hymenomycetes and Gasteromycetes). Chapman and Hall: London, England. 329 p.
(2004). Fungi Fimicoli Italici. Associazione Micologica Bresadola: Trento, Italy. 1104 p.
Moreno, G., Lizárraga, M., Esqueda, M. & Coronado, M.L.
(2010). Contribution to the study of gasteroid and secotioid fungi of Chihuahua, Mexico. Mycotaxon 112(1): 291-315.
Pegler, D.N., Læssøe, T. & Spooner, B.M.
(1995). British Puffballs, Earthstars, and Stinkhorns. Royal Botanic Gardens: Kew, England. 255 p.
Other Descriptions and Photos
(D=Description; I=Illustration; P=Photo; CP=Color Photo)
The Fungi of California
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