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Species Information
Summary: Features include 1) resupinate growth on dead branches of trees and bushes and on dead herbaceous substrates, 2) thin, white fruitbodies that are smooth without an especially differentiated margin, 3) smooth, elliptic to bean-shaped, amyloid spores often somewhat constricted in the middle, 4) terminal or lateral basidia that are 4-spored, and 5) a monomitic hyphal system, the hyphae narrow and richly branched, with clamp connections, and in the subhymenium ampullately widened,
Melzericium udicola has been found in BC, WA, ID, ON, (Ginns). It also occurs in Norway, Sweden, and the Canary Islands, (Eriksson), and France (Bourdot).
Fruiting body: resupinate, adnate [firmly attached], thin, submembranous; white; smooth; margin not especially differentiated, (Eriksson), irregularly effused, pellicular, porous or continuous, white then cream, border similar, scarcely farinose or fibrillose, (Bourdot)
Microscopic: SPORES 6-10(12) x 3-4.5 microns, elliptic, bean-shaped or kidney-shaped, "often somewhat constricted in the middle", smooth, amyloid, colorless, thin-walled; BASIDIA 4-spored, 16-22 x 5-7 microns, "varying in shape, generally terminal but some pleurobasidia observed, broadly clavate when terminal, sometimes slightly constricted, when pleurobasidial subcylindrical"; with basal clamp connection; CYSTIDIA none; HYPHAE monomitic, 1-3 microns wide, thin-walled, with clamp connections, richly branched, especially in the subhymenial layer, "where they are also more or less ampullately widened; subicular hyphae straighter, more distinct, and more sparsely branched", (Eriksson)
Habitat / Range
on "dead branches of deciduous trees and bushes, also on dead herbaceous substrates, near the ground in humid habitats with mould-soil", (Eriksson), on rotten wood; Alnus tenuifolia (Thinleaf Alder), Populus sp., Salix sp. (willow), Thuja occidentalis (Northern White-cedar), (Ginns), Idaho specimen as Corticium areolatum on Alnus tenuifolia (Bresadola), in marshland, on twigs, willow, broom, apple, rushes, leaves, (Bourdot)
