Suillus granulatus (Linne : Fries) Kuntze

COMMON NAME: Dotted-stalked Suillus, Granulated Slippery Jack.

CAP: (5-12 cm) wide, broadly convex; surface sticky or slimy when fresh, color variable, some shade of tan, brown, cinnamon, or orangish cinnamon, staining olive-gray in KOH; margin lacking veil remnants even when young; flesh white to pale yellow, not staining blue when cut or bruised, staining olive-gray in F2S04; odor and taste not distinctive.

PORE SURFACE: whitish when young, soon becoming yellowish, not staining blue when cut or bruised; pores irregular to nearly circular, 1 per mm.

STALK: (4-8 cm) long, (1-2.5 cm) thick, nearly equal, solid, whitish when young, becoming yellowish in age, especially at the apex, covered with conspicuous pinkish tan to brownish glandular dots and smears; partial veil and ring absent.

SPORE PRINT: brown.

MICROSCOPIC FEATURES: spores 7-10 x 2.5-3.5 μm, oblong or tapered slightly to the apex, pale brown.

FRUITING: scattered or in groups on the ground under pines; June-November; fairly common.

EDIBILITY: edible.


  From Mushrooms of Northeastern North America
Alan E. Bessette, Arleen R. Bessette, & David W. Fischer 
Copright © 1997
Syracuse University, ISBN 0-8156-0388-6