Pleurotis UlmariusPleurotus ulmarius
Cap or Pileus - Convex or nearly flat, firm, smooth. White, tinted at the centre with reddish yellow or brownish yellow. 2-5 inches broad.
Gills or Lamellae - Broad, not crowded, notched at the stem end, growing down the stern. White, turning yellow with age.
Stem or Stipe - United to the cap one side of the centre. Usually curved; solid, smooth, or downy. White or whitish. 2-4 inches long.
Flesh - White, not tender, agreeable flavour.
Spores - White, globose.
Time - September to November.
Habitat - Conspicuous on dead parts of standing elms. Large and white. Sometimes found on other than elm trees.