Summary: Features include 1) a viscid to glutinous, often streaked cap that is brown to dark brown when young, often becoming purplish brown or cinnamon to orange-cinnamon when old, 2) white flesh, 3) large, cream to ocher-yellow pores that are elongated and radially arranged, and 4) a white to yellow stem that has brownish vinaceous to dark brown dots and smears and often stains brownish but has no partial veil or annulus.
Odor: pungent or not distinctive (Bessette), none (Smith(34), Smith(35))
Taste: not distinctive (Bessette), none (Smith(34), Smith(35))
Microscopic: spores 7-10 x 3-4 microns, subelliptic to oblong, smooth, nearly colorless, (Bessette), spores 7-10 x 3-3.5 microns, mostly 8 x 3 microns, elliptic, colorless, a few deep olivaceous; cystidia 40-80 x 6-9 microns, cylindric to somewhat clavate, densely clustered, colorless to dark-colored, (Smith(34)), spores 7.5-9 x 3-3.2 microns, oblong, smooth, inamyloid, colorless to slightly yellowish or some dark red-brown in KOH; basidia 4-spored; pleurocystidia 45-68 x 6-9 microns, cylindric to narrowly clavate, clustered, "much vinaceous-red to vinaceous-brown amorphous pigment around the clusters in the hymenium" but many cystidia with colorless content at least in the projecting part; cap cuticle a collapsed trichodermium of hyphae 4-10 microns wide and as revived in KOH with copious incrustation of fine granules, the layer gelatinous; caulocystidia similar to pleurocystidia or smaller; clamp connections absent, (Smith(35))
Spore Deposit: ochraceous brown (Bessette), bright ochraceous brown (Smith(34))
Notes: Suillus punctatipes is found in WA (Smith(34)), ID (Smith(36)), from MI to Pacific Northwest and CA (Bessette), OR (collections at Oregon State University), and BC (collections at the University of British Columbia).
EDIBILITY
edible once gluten is removed (Bessette)
Habitat and Range
SIMILAR SPECIES
Suillus granulatus has a pinkish cinnamon cap that lacks the darker brown tones and irregular to round pores that are not boletinoid (i.e. not radially arranged and elongated), (Bessette).
Habitat
single, scattered, or in groups on ground in conifer forests, (Bessette), type collected under Douglas-fir, hemlock and fir, (Smith(34)), single in mixed conifers (Smith for single collection in Michigan)