Elder Whitewash Hyphodontia sambuci (Pers.) J. Erikss. syn. Hyphoderma sambuci (Pers.) Jülich (illustrated 65% life size) Fruit body resupinate, very thin; white; mealy, pruinose, or chalky. Spores 4.5–6×3.5–4¼, ellipsoid; white to yellowish. Cystidioles narrowly fusoid, often capitate at apex. Habitat on deciduous wood, especially elder; all year, especially autumn to winter. Common. Not edible.