The gills are powdered by the spores, that is, the spores fall away with difficulty and thus give the gills a Pulverulent appearance.
"Studies of American Fungi. Mushrooms, Edible, Poisonous, etc."
George Francis Atkinson
Pulverulent, with a minute powdery substance.
"Studies of American Fungi. Mushrooms, Edible, Poisonous, etc."
George Francis Atkinson
Sporangia depressed, polygonal, approximate and sometimes confluent, the surface cinereous-Pulverulent, seated on a silvery hypothallus; the wall firm, thick, the outer surface yellow-brown, covered with minute whitish scales, the inner surface yellow, deeply reticulately impressed by the spores which rest against it, dehiscent in a circumscissile manner.
"The Myxomycetes of the Miami Valley, Ohio"
A. P. Morgan