Quilted Green Russula
An eastern North American green Russula whose blue-green, velvety cap cracks into large crustose patches. It was named in 2006, when it was split from the traditional R. virescens. It is smaller than R. virescens and has a lined cap margin. Under the microscope its cap cuticle has voluminous terminal cells.
Edible, as part of the quilted green Russula group. The deadly death cap (Amanita phalloides) also has a greenish cap and white gills. It has a ring on the stem and a sack-like volva at the base, and its cap does not crack into a quilted mosaic. Dig up the stem base of every green-capped mushroom. Discard any that taste acrid.
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Mycology is an evolving science: names, classifications and safety information change as research advances. Entries are compiled from cited sources and reviewed, but may be incomplete or out of date — check the sources, and never rely on this library alone to identify or eat a mushroom.