Suillus grevillei (Klotzsch) Singer 1945

Boletus clintonianus Peck. Ann. Rep. N. Y. State
Cab. 23: 128. 1872.
f Boletus viridarius Frost, Bull. Buffalo Soc. Nat. Sci. 2 : 100. 1874. (Type from Vermont.) Boletus serotinus Frost, Bull. Buffalo Soc. Nat. Sci. 2 : 100. 1874. (Type from Vermont.)
Pileus convex, gregarious, 5-12 cm. broad; surface golden-yellow to chestnut, becoming darker with age, smooth, viscid, glabrous, with separable cuticle ; margin at first incurved, then thin and spreading : context 5 mm. or more thick, soft, pale-yellow or goldenyellow, becoming very slightly greenish when wounded, taste mild ; tubes 5-7 mm. long, nearly plane in mass, adnata or subdecurrent, not depressed, pale-yellow to melleous, slightly discolored within when wounded, mouths subcircular, more or less compound, small, rather irregular, edges acute, changing to reddish or purplish-brown when bruised : spores oblong, brownish-ochraceous, 10-12 X 4-5 // : stipe subequal , straw-yellow and slightly reticulate at the apex, reddish-chestnut and even below, solid, straw-yellow within, becoming slightly reddish when bruised, 5-12 cm. long, 1-2 cm. thick ; annulus cottony-white or yellowish, ample, persistent, often appearing double.
Type locality: North Elba, New York. Habitat : Shaded grassy places.
Distribution : Canada and the northeastern United States south to New Jersey.