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Species Information
Summary: Also listed in Jelly category. Ditiola peziziformis has top-shaped to cup-shaped, gelatinous, yellow fruit bodies with a whitish margin and a downy, whitish outer surface, and they usually grow on hardwoods.
Distribution includes BC, and also NS, ON, PQ, GA, ME, MI, NH, NY, OH, SC, and VT, (Ginns), Europe (Breitenbach), Japan (Martin), and the British Isles, Czechoslovakia, Finland, Germany, Sweden, USSR, and Japan, (McNabb).
Upper surface: 0.5-1cm wide and the same tall, cylindric, turbinate [top-shaped] to cup-shaped, disc usually flat to concave but sometimes slightly convex, margin even or slightly wavy, fruiting bodies compressed when clustered, margin white; smooth to somewhat wrinkled, (Breitenbach), 0.3-1.4cm in diameter, 0.5-1.5cm high, at first pustulate, becoming turbinate or pezizoid, often collapsing on substrate when old; interior of cup dingy yellow, yellow, or orange yellow when fresh, darkening when old, drying dull red-brown, (McNabb)
Flesh: gelatinous, soft, translucent with whitish core; light yolk-yellow, (Breitenbach), consistency of fruiting body firm-gelatinous, (McNabb)
Underside: whitish, finely pubescent, "sometimes drawn out toward the base like a stipe", (Breitenbach), white, drying dingy white to cream; tomentose, (McNabb)
Stem: without stem or with short stem, tomentose, occasionally surrounded by a dingy cream mycelial weft, (McNabb)
Microscopic: spores 22-25 x 8-9 microns, cylindric to elliptic, some slightly curved, smooth, inamyloid, colorless, with granular contents, when fully mature with 3 to multiple septa, up to 32 microns long, and forming secondary spores; basidia 60-100 x 5-6 microns, tuning-fork-shaped; cystidia not seen, hyphae 2-8 microns wide, sometimes inflated, most septa without clamp connections, (Breitenbach), spores (19)22-27.5(30) x 7.5-11 microns, "broadly curved-cylindrical, narrowing basally, thin-walled with thin indistinct septa, tinted, apiculate", becoming tardily 3-many-septate at maturity, germination by colorless spherical to nearly spherical conidia; probasidia (65)75-110(125) x 5-7.5 microns, cylindric to cylindric-subclavate, with basal clamp connections, becoming bifurcate; hymenium "superior, confined to interior of cup, composed of basidia and occasionally simple cylindrical dikaryophyses"; internal hyphae "thick-walled, smooth or roughened, clamp connections present"; cortex and stem "covered with long cylindrical, thick-walled hairs, simple or sparingly branched, with conspicuous clamp connections at all septa", (McNabb)
Habitat / Range
on hardwoods (Alnus, Betula, Fagus, Liriodendron), rarely conifers (Abies, Tsuga), on limbs with bark, wood with bark, branches, (Ginns), breaking through the bark gregariously to clustered, on dead wood of Abies as well as various hardwoods, usually on upper side of fallen branches still with bark, summer to fall, (Breitenbach)
Similar Species
The appearance of Ditiola peziziformis suggests an ascomycete, but the microscopic differences are obvious. Heterotextus alpinus is dull and smooth to pimply or ribbed on undersurface rather than velvety, (McKnight(1)).
