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Picoa carthusiana.   Click a photo to enlarge it.   back to list

Picoa carthusiana Mushroom
Ref No: 8726
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location: North America
edibility: Edible
fungus colour: Black or blackish
stem type: Lateral, rudimentary or absent
flesh: Flesh exudes white or watery latex (milk) when cut
spore colour: White, cream or yellowish
habitat: Grows underground

Picoa carthusiana Tul. Fruit body 0.5-8cm across, subglobose to globose; black to sooty violet-gray; minutely warted. Interior solid, comprising fertile tissue streaked with paler sterile veins. Fertile tissue is whitish to buff becoming grayish green or greenish blue; sometimes exudes a clear milk which slowly stains white paper light mauve. Asci 8-spored, buried in the fertile tissue. Spores lemon- or spindle-shaped, smooth when mature, 74-84 x 20-35µ. Habitat singly, scattered, or in small groups in soil or humus in woods. Found in western North America. Season August-October. Edible-good.

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