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Species Information
Summary:
Not available
Fruiting body: cap 0.5-2cm wide, "usually rounded or convex, sometimes with a central depression and sometimes convoluted"; "creamy to pinkish-buff, cinnamon-buff, vinaceous-buff, pale brown, or occasionally darker"; wrinkled or smooth, underside sterile, often with radiating veins that extend up from stem, (Arora), 2-6cm high, fleshy, becoming more distinctly leathery in drying; fertile part 0.5-2cm wide, rather thin, surface convex, even, wrinkled or convoluted, margin acute and recurved, even or wavy; cream-buff with a faint rosy tint, or sometimes yellowish, or pale brownish, (Seaver), 1-2cm across and 1/6 to 1/4 the height of the fruitbody, irregularly rounded and flattened, often weakly umbilicate, margin strongly rolled under, cartilaginous; ocher-whitish; dry, (Breitenbach)
Flesh: thin (Barron)
Stem: 1.5-7cm x 0.2-1.2cm, but usually less than 0.6cm at top, equal or more often thicker in lower part, stuffed or sometimes hollow when old; drab to dark brown (usually darker than cap); usually minutely scurfy, often longitudinally striate or ridged, especially in upper part, (Arora), 0.15-0.5cm wide in upper part, 0.2-1cm in lower part; sometimes becoming hollow when old; darker than cap surface especially in lower part; often longitudinally striate especially in upper part, the striae being prolonged as radiating veins on lower side of cap; somewhat farinaceous, (Seaver), 0.2-0.6cm wide, distinctly set off from cap, cylindric and slightly thickened toward base, sometimes rather flattened; more or less the same color as the cap in upper part, reddish brown toward the base, sometimes also with a lilac tint, (Breitenbach)
Microscopic: spores (28)32-40(46) x 2 microns, needle-like, smooth, sometimes septate but usually not, colorless, (Arora), spores 30-45 x 2 microns, clavate-filiform, broadest above the middle or at the distal end, fasciculate, colorless, smooth, asci 8-spored, up to 85-130 microns long and 8-10 microns wide, club-shaped, apex narrowed, not blue with iodine; paraphyses "hyaline, filiform, strongly curved above, often branched, tips only slightly thickened, 2 microns thick," (Seaver), spores (28)32-40(46) x 2 microns, wall thin and gelatinous, 1-celled or sometimes several-septate, "conidia commonly produced on short sterigmata by the ascospores, subspherical to broadly ellipsoid, 3-4 x 2 microns, hyaline, sometimes replacing the spores in the asci"; asci 90-150 x 8-10 microns, clavate; paraphyses filiform, branched in lower part, strongly curved or uncinate [hooked] in upper part, colorless, (Mains), spores 28-46 x 2 microns, with multiple cross-walls when mature, (Trudell), paraphyses filiform, bent over at the apex and spirally inrolled, (Breitenbach)
Habitat / Range
scattered to gregarious or often in dense clusters in humus, soil, and on rotting wood; particularly common under conifers, but also found with hardwoods, (Arora), single or gregarious on rotten wood or humus among leaves, often under conifers, (Seaver), gregarious to clustered or in fairy rings, in coniferous forests on needle litter and among mosses, (Breitenbach), several to gregarious "on humus, well-decayed wood, under or near conifers", late summer and fall, (Miller)
Similar Species
Pachycudonia monticola "is a mostly spring-fruiting, less yellowish species" with shorter (18-24 microns) spores, normally with one or no crosswalls (as opposed to multiple cross-walls for C. circinans), (Trudell), P. monticola is pinkish-cinnamon to pinkish-buff to grayish brown, occurs mainly in spring and summer, and has smaller spores; Cudonia grisea is drab or dark gray, and has smaller spores (18-22(24) microns long); Leotia lubrica is gelatinous, thicker-fleshed, and more brightly colored sometimes with green tints, and has different spores
