Suillus brevipes (Peck) Kuntze
short-stemmed slippery jack
Suillaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
short-stemmed slippery jack
Suillaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
Species Information
Summary:
Features include 1) smooth, slimy dark brown to vinaceous brown or reddish brown cap, 2) white to yellow flesh that does not turn blue, 3) whitish to yellowish pores and tubes that do not turn blue, 4) absent veil, 5) stem that lacks glandular dots and is usually short, and 6) growth under Lodgepole Pine. This is "among our most common and widespread species" of Suillus in the Pacific Northwest (Trudell(4)).
Chemical Reactions:
cap cuticle brownish black with application of KOH, flesh olive with application of FeSO4, (Bessette)
Odor:
not distinctive (Smith, Bessette)
Taste:
not distinctive (Smith, Bessette)
Microscopic:
spores 7-9(10) x 2.8-3.2 microns, elliptic to oblong, smooth, inamyloid, pale yellowish; basidia 4-spored, 18-24 x 5-6 microns, clavate, colorless in KOH, yellowish in Melzer''s reagent; pleurocystidia (in bunches with amorphous brown pigment surrounding base of cluster), 35-50 x 6-9 microns, cylindric to clavate, colorless to brown, cheilocystidia similar or larger and more broadly clavate; clamp connections absent, (Smith), spores 7-10 x 2.5-3.5 microns, narrowly elliptic, (Bessette), spores 7-10 x 3-4 microns, elliptic to spindle-shaped, (Arora)
Spore Deposit:
near "cinnamon" (Smith), cinnamon-brown (Bessette), brown to dull cinnamon (Arora)
Notes:
It is found in ID, OR, WA, and also CA, CO, FL, MI, TN, TX, WV, WY, (Smith), PQ, AL, (Lincoff), NS (Grund), BC (in Redhead), and MT (L. Evans, pers. comm.).
EDIBILITY
yes (Bessette), peel cap cuticle before cooking (Arora)
Habitat and Range
SIMILAR SPECIES
Suillus granulatus has a stem distinctly more glandular dotted when young, and the cap is typically more mottled, (Smith). Suillus pseudobrevipes has a honey-yellow to yellow-brown cap with an appendiculate margin and annulus, (Bessette). S. neoalbidipes has a distinct band of cottony tissue on the margin of young caps, small clusters of caulocystidia, and rare to few clusters of pleurocystidia, whereas S. brevipes has bald cap margin, small clusters of caulocystidia, and numerous clusters of pleurocystidia, (Palm). Suillus borealis and Suillus neoalbidipes have a cottony roll on the margin of young caps and often have recognizable veil remnants, (McKnight). See also SIMILAR section of Suillus albivelatus, Suillus pallidiceps, and Suillus quiescens.Habitat
scattered to cespitose [in tufts] under 2-needle and 3-needle pines, in the Rocky Mountains and the Pacific Coast under P. contorta, summer, fall, warm wet winter weather, (Smith), scattered or in groups under pine, August to November, (Bessette), scattered to densely gregarious under conifers, particularly 2-needle and 3-needle pines, also spruce, (Arora), June to November (Phillips), summer, fall
Status Information
Synonyms
Synonyms and Alternate Names:
Boletus subtomentosus Linne
Ceriomyces oregonensis Murrill