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Species Information
Summary: Features include 1) resupinate growth on hardwood and conifer wood, 2) a soft fruitbody that is whitish to grayish cream or pale ochraceous, and smooth, the margin indistinct and the periphery pruinose, 3) spores that are elliptic, smooth, inamyloid, containing oil droplets or oil bodies, 4) cystidia that are narrowly fusiform, projecting, cyanophilic, normally encrusted especially in the middle part, with thickened walls except at the tips, 5) a monomitic hyphal system, the hyphae cyanophilic, with clamp connections.
Hyphodontia alienata has been found in BC, Poland, Sweden, Ukraine, and Zimbabwe, (Langer), ON, PQ, and NC, (Ginns), and Czechoslovakia and Finland (Eriksson).
Fruiting body: resupinate, effused [spread out], thin (normally less than 0.01cm), "soft, when alive delicate and easily squeezed"; "at first whitish, then and after drying greyish-cream or pale ochraceous"; smooth to naked eye, under 50x lens "porose-floccose or even finely papillose, tomentose by projecting cystidia"; "margin indistinct, gradually thinning out, periphery pruinose", (Eriksson)
Microscopic: SPORES elliptic, "adaxial side flattened or even slightly concave", smooth, inamyloid, thin-walled, containing oil droplets or irregular oily bodies, normally 4.5-5.5 x 3-3.5 microns; BASIDIA at first subclavate, then subcylindric, "often with a median constriction in a suburniform way", normally 4-spored, 16-20(25) x 4.5-5.5 microns; CYSTIDIA numerous, 60-100 x 5-6 microns, sometimes longer, projecting 30-50 microns, rather evenly dispersed, "walls stainable in cotton-blue" [cyanophilic], "narrowly fusiform, normally encrusted especially in the middle part but in mature cystidia the encrustation may cover the whole cystidium except the base, with thickened, apparently double-layered walls except in the apices", which remain thin-walled; HYPHAE monomitic, with clamp connections, stainable in cotton-blue; basal hyphae 3-4 microns wide, "with somewhat thickened walls, loosely intertwined in the subiculum"; "subhymenial hyphae denser and thinner", (Eriksson)
Habitat / Range
Abies (fir), Betula (birch), Picea (spruce), (Ginns), on decayed wood, preferentially hardwood (Alnus, Betula), but also on conifer wood, (Eriksson)
Similar Species
Hyphodontia abieticola is odontioid, its cystidia are grouped together, and the cystidia are different, (Eriksson).
