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Thelephora stuposa (Link) Kõljalg, I. Saar & Svantesson 2024 s.str.

Syn. Tomentella stuposa (Link) Stalpers 1984

Basidiome: adherent, tomentose or slightly felted
Hymenophore: smooth, hazelnut to dark brownish
Margin: same color as the hymenophore, usually inconspicuous
Rhizomorphs: not present
Subiculum: same color as the hymenophore

Subicular hyphae: brownish, with clamps, occasional septa without clamps, thick-walled, hyphal walls swell strongly in KOH, not encrusted, 4-8 µm wide
Subhymenial hyphae: hyaline to brownish, thin-walled, relatively short-celled, with clamps, 4-8 µm wide
Cystidia: not present
Basidia: hyaline to brownish, with basal clamp
Spores: light brown, regularly rounded from frontal and lateral view, 8-10 µm, spines up to 2.5 µm

Distribution: Worldwide in temperate regions, one of the common species in Germany.
Note: The similar Thelephora lapida has encrusted hyphae and slightly smaller spores, which are also somewhat less regular at times.

Zeichnung: H. Maser