Ciboria rufofusca (O. Weberb.) Sacc.
no common name
Sclerotiniaceae

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

Introduction to the Macrofungi

Photograph

© Paul Dawson     (Photo ID #88293)


Map

E-Flora BC Static Map

Distribution of Ciboria rufofusca
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Species Information

Summary:
Ciboria rufofusca is an orange to chestnut brown or brown cup with a stem, growing on fallen true fir cones in spring. The same or a similar species grows on Douglas-fir in the Pacific Northwest. Beug(3) shows what looks like this species growing on a Douglas-fir cone.
Microscopic:
spores 5-7 x 3-3.5 microns, oval, smooth, colorless, sometimes with 2 small droplets, uniseriate; asci 8-spored, 75-80 x 5-5.5 microns, amyloid; paraphyses slender, barely thickened toward tips, without septa, (Breitenbach), spores 5.5-7.5 x 3-3.5 microns; asci 65-90 x 5.5-6.5, (Hansen), spores 4-6 x 2-3 microns; asci 45-55 x 4-5 microns; paraphyses filiform, (Kanouse)
Notes:
It is found in WA (Kanouse). There are collections from BC at the University of British Columbia, from WA at the University of Washington, and from OR at Oregon State University. Desjardin(6) illustrated it from CA. It also occurs in Europe including Denmark, Norway, and Sweden, (Hansen), and Switzerland (Breitenbach). Douglas-fir cones have been photographed in WA and BC bearing this kind of fungus.

Habitat and Range

SIMILAR SPECIES
Similar cups grow on Douglas-fir - it is not clear how these cups relate to Ciboria rufofusca (a long-stemmed brown cup was photographed by Daniel Winkler in Washington and the cups illustrated for C. rufofusca in Beug(3) appear to be on a Douglas-fir cone).
Habitat
single to a few per scale, on damp scales of Abies (fir) cones lying on ground, April to May, (Breitenbach), on stromatized cone scales of Abies, spring and early summer, (Hansen), on scales of Abies cones, May and June, (Kanouse)