Suillus luteus, also known as Slippery Jack Bolete, is a medium to large bolete with slimy, brown cap. It's short to stubby stalk has brown dots and a well-developed ring.
chestnut, rusty, olive brown, or dark brown in color. It has a distinctive conical shape, later flattening out. It is slimy to the touch, bare, smooth, and glossy even when dry, and the cuticle is easily peeled off. Flesh whitish with yellow tinge, unchanging, moderate and soft, unchanging when cut. Pores
tiny, circular, initially yellow but turn olive to dark yellow with maturity. Like the skin of the cap, they can be readily peeled away from the flesh. Tubes concolorous with pores, adnate. Spores
pale yellow and more or less cylindrical but may bear a swollen base. A membranous partial veil initially links the stipe with the edge of the cap. When it ruptures, it forms a membranous, hanging ring with is at first whitish, darkening with age, vinaceous-brown below and large.
on the Nature First Web site.
on the MushroomExpert.Com Web site.