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Suillus brevipesis a species of fungusin the family Boletaceae0
First descri/ed /y American
mycologists in the late ')th century, it is commonlykno1n as the
stubby-stalkor the short-stemmed slippery Jack0 2he fruit
/odies#mushrooms% produced /y the fungus are characteri&ed/y a
chocolate to reddish3/ro1ncapcovered 1ith a sticky layer of slime,
and a short 1hitish
stipethat does not have either apartial veilor prominent dark or
colored glandular dots0 2he cap
can reach a diameter of a/out '4 cm #50) in%, 1hile the stipe is
up to 6 cm #70. in% long and 7 cm
#40( in% thick0 8ike other/oletemushrooms, S. brevipesproduces
sporesin a vertically arrangedlayer of spongy tu/es 1ith openings
that form a layer of small yello1ish pores on the underside
of the cap0
Suillus brevipesgro1s in a mycorrhi&alassociation 1ith
various species of t1o3 and three3
needled pines, especiallylodgepoleandponderosa pine02he fungus
is found throughout 9orthAmerica, and has /een introducedto several
other countries via transplanted pines0 n the
successionof mycorrhi&al fungi associated 1ith the regro1th
of;ack pineafter clearcuttingor
1ildfires, S. brevipesis a multi3stage fungus, found during all
stages of tree development0 2hemushrooms are edi/le, and are high
in the essentialfatty acidlinoleic acid0
https://en.wikipedia.org/wiki/Stipe_(mycology)https://en.wikipedia.org/wiki/Spore_printhttps://en.wikipedia.org/wiki/Spore_printhttps://en.wikipedia.org/wiki/Mycorrhizalhttps://en.wikipedia.org/wiki/Mycorrhizalhttps://en.wikipedia.org/wiki/Mycorrhizalhttps://en.wikipedia.org/wiki/Edible_mushroomhttps://en.wikipedia.org/wiki/Fungushttps://en.wikipedia.org/wiki/Boletaceaehttps://en.wikipedia.org/wiki/Common_namehttps://en.wikipedia.org/wiki/Basidiocarphttps://en.wikipedia.org/wiki/Mushroomhttps://en.wikipedia.org/wiki/Pileus_(mycology)https://en.wikipedia.org/wiki/Pileus_(mycology)https://en.wikipedia.org/wiki/Pileus_(mycology)https://en.wikipedia.org/wiki/Stipe_(mycology)https://en.wikipedia.org/wiki/Partial_veilhttps://en.wikipedia.org/wiki/Boletehttps://en.wikipedia.org/wiki/Boletehttps://en.wikipedia.org/wiki/Basidiosporehttps://en.wikipedia.org/wiki/Mycorrhizaehttps://en.wikipedia.org/wiki/Lodgepole_pinehttps://en.wikipedia.org/wiki/Lodgepole_pinehttps://en.wikipedia.org/wiki/Ponderosa_pinehttps://en.wikipedia.org/wiki/Ponderosa_pinehttps://en.wikipedia.org/wiki/Introduced_specieshttps://en.wikipedia.org/wiki/Ecological_successionhttps://en.wikipedia.org/wiki/Ecological_successionhttps://en.wikipedia.org/wiki/Jack_pinehttps://en.wikipedia.org/wiki/Clearcuttinghttps://en.wikipedia.org/wiki/Wildfirehttps://en.wikipedia.org/wiki/Edible_mushroomhttps://en.wikipedia.org/wiki/Essential_fatty_acidhttps://en.wikipedia.org/wiki/Linoleic_acidhttps://en.wikipedia.org/wiki/Linoleic_acidhttps://en.wikipedia.org/wiki/Stipe_(mycology)https://en.wikipedia.org/wiki/Spore_printhttps://en.wikipedia.org/wiki/Spore_printhttps://en.wikipedia.org/wiki/Mycorrhizalhttps://en.wikipedia.org/wiki/Mycorrhizalhttps://en.wikipedia.org/wiki/Mycorrhizalhttps://en.wikipedia.org/wiki/Edible_mushroomhttps://en.wikipedia.org/wiki/Fungushttps://en.wikipedia.org/wiki/Boletaceaehttps://en.wikipedia.org/wiki/Common_namehttps://en.wikipedia.org/wiki/Basidiocarphttps://en.wikipedia.org/wiki/Mushroomhttps://en.wikipedia.org/wiki/Pileus_(mycology)https://en.wikipedia.org/wiki/Stipe_(mycology)https://en.wikipedia.org/wiki/Partial_veilhttps://en.wikipedia.org/wiki/Boletehttps://en.wikipedia.org/wiki/Basidiosporehttps://en.wikipedia.org/wiki/Mycorrhizaehttps://en.wikipedia.org/wiki/Lodgepole_pinehttps://en.wikipedia.org/wiki/Ponderosa_pinehttps://en.wikipedia.org/wiki/Introduced_specieshttps://en.wikipedia.org/wiki/Ecological_successionhttps://en.wikipedia.org/wiki/Jack_pinehttps://en.wikipedia.org/wiki/Clearcuttinghttps://en.wikipedia.org/wiki/Wildfirehttps://en.wikipedia.org/wiki/Edible_mushroomhttps://en.wikipedia.org/wiki/Essential_fatty_acidhttps://en.wikipedia.org/wiki/Linoleic_acid
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2he cap flesh is 1hite or pale yello1, and does not change color
1hen cut0
2he pores on the underside of the cap are minute, typically 75
per millimeter0
2he capis deep /ro1n to reddish3/ro1n, later fading to tan1ith
age, and it does not /ruise 1ith
handling0 2he cap surface is smooth, and, depending on the
moisture in the environment, may
range from sticky to the touch to slimy0 Depending on its
maturity, the cap shape may range fromspherical to /roadly
conve
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on the face of a gill% are roughly cylindrical 1ith rounded
ends, thin31alled, and .4 /y
( Im0 2he cells often have /ro1n contents, and in the presence
of 7potassium hydro% 1ill appear hyaline#translucent%
orvinaceous#red 1ine3colored% in -el&ers reagentthey /ecome
pale yello1 or /ro1n0 2he cheilocystidia #cystidia found on the
edge of a gill% are
5464 /y @'4 Im, clu/3shaped to almost cylindrical, thin31alled,
1ith /ro1n incrusting
material at the /ase, and arranged like a /undle of fi/ers0 n
K> they appear hyaline, and arepale yello1 in -el&ers
reagent0 Caulocystidia #found on the stipe% are 64)4 /y @) Im,
mostly
cylindrical 1ith rounded ends, and arranged in /undles 1ith
/ro1npigmentparticles at the /ase0
2he caulocystidia stain vinaceous in K>0 2he cuticleof the
cap is made of a layer ofinter1oven gelatinous hyphae that are
individually 7 Im thick the gelatinous hyphae are
responsi/le for the sliminess of the cuticle0*'6+2here are no
clamp connectionsin the hyphae0*'+
#dibility[edit
!ources recommend peeling off the slimy cap cuticle /efore
eating the mushroom0
8ike many species of the genus Suillus, S. brevipesis edi/le,
and the mushroom is considered
choice /y some0*'(+2he odor is mild, and the taste mild or
slightly acidic0 *'4+Field guidestypically
recommended to remove the slimy cap cuticle, and, in older
specimens, the tu/e layer /eforeconsumption0*'4+*')+2he mushrooms
are common in the diet of gri&&ly /earsin ello1stone
9ational $ark0*74+
2he fatty acidcomposition of S. brevipesfruit /odies has /een
analy&ed0 2he cap contained ahigher lipidcontent than the
stipeG'(0. of thedry 1eight,compared to '70.0 n the cap,
linoleic acidmade up 40@ of the total lipids #60@ in the stipe%,
oleic acid1as 7)0) #'70.
in the stipe%, follo1ed /ypalmitic acidat '40 #'706 in the
stipe%0 *7'+8inoleic acidGa mem/er
of the group of essential fatty acidscalled omega36 fatty
acidsGis an essential dietaryreuirement for humans0*77+
Similar species[edit
!everal Suillusspecies 1hich gro1 under pines could /e confused
1ith S. brevipes0S.granulatushas a longer stipe, and distinct
raised granules on the stipe0 S. brevipesis
differentiated from S. albidipes/y not having a cottony roll of
velar tissue #derived from apartial
veil% at the margin 1hen young0 S. pallidicepsis /y
distinguished its pale yello1 cap color andS. albivelatushas a
veil0*'+S.pungenshas a characteristic pungent odor, compared to the
mild
smell of S. brevipes, and like S. granulatus, has glandular dots
on the stipe0*'(+
https://en.wikipedia.org/wiki/Potassium_hydroxidehttps://en.wikipedia.org/wiki/Potassium_hydroxidehttps://en.wikipedia.org/wiki/Hyalinehttps://en.wikipedia.org/wiki/Wine_(color)https://en.wikipedia.org/wiki/Wine_(color)https://en.wikipedia.org/wiki/Melzer's_reagenthttps://en.wikipedia.org/wiki/Pigmenthttps://en.wikipedia.org/wiki/Pigmenthttps://en.wikipedia.org/wiki/Pileipellishttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Grund1976-16https://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Grund1976-16https://en.wikipedia.org/wiki/Clamp_connectionhttps://en.wikipedia.org/wiki/Hyphahttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Tylutki1987II-15https://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Tylutki1987II-15https://en.wikipedia.org/w/index.php?title=Suillus_brevipes&action=edit§ion=4https://en.wikipedia.org/wiki/Suillushttps://en.wikipedia.org/wiki/Edible_mushroomhttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Orr1979-18https://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Evenson-10https://en.wikipedia.org/wiki/Field_guidehttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Evenson-10https://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Weber1980-19https://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Weber1980-19https://en.wikipedia.org/wiki/Grizzly_bearhttps://en.wikipedia.org/wiki/Yellowstone_National_Parkhttps://en.wikipedia.org/wiki/Yellowstone_National_Parkhttps://en.wikipedia.org/wiki/Yellowstone_National_Parkhttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Mattson2002-20https://en.wikipedia.org/wiki/Fatty_acidhttps://en.wikipedia.org/wiki/Lipidhttps://en.wikipedia.org/wiki/Dry_matterhttps://en.wikipedia.org/wiki/Dry_matterhttps://en.wikipedia.org/wiki/Dry_matterhttps://en.wikipedia.org/wiki/Linoleic_acidhttps://en.wikipedia.org/wiki/Oleic_acidhttps://en.wikipedia.org/wiki/Palmitic_acidhttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Sumner1973-21https://en.wikipedia.org/wiki/Essential_fatty_acidhttps://en.wikipedia.org/wiki/Omega-6_fatty_acidhttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Russo2009-22https://en.wikipedia.org/w/index.php?title=Suillus_brevipes&action=edit§ion=5https://en.wikipedia.org/wiki/Suillus_granulatushttps://en.wikipedia.org/wiki/Suillus_granulatushttps://en.wikipedia.org/wiki/Suillus_granulatushttps://en.wikipedia.org/wiki/Suillus_albidipeshttps://en.wikipedia.org/wiki/Suillus_albidipeshttps://en.wikipedia.org/wiki/Partial_veilhttps://en.wikipedia.org/wiki/Partial_veilhttps://en.wikipedia.org/wiki/Suillus_pallidicepshttps://en.wikipedia.org/wiki/Suillus_pallidicepshttps://en.wikipedia.org/w/index.php?title=Suillus_albivelatus&action=edit&redlink=1https://en.wikipedia.org/w/index.php?title=Suillus_albivelatus&action=edit&redlink=1https://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Tylutki1987II-15https://en.wikipedia.org/wiki/Suillus_pungenshttps://en.wikipedia.org/wiki/Suillus_pungenshttps://en.wikipedia.org/wiki/Suillus_pungenshttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Orr1979-18https://en.wikipedia.org/wiki/Potassium_hydroxidehttps://en.wikipedia.org/wiki/Hyalinehttps://en.wikipedia.org/wiki/Wine_(color)https://en.wikipedia.org/wiki/Melzer's_reagenthttps://en.wikipedia.org/wiki/Pigmenthttps://en.wikipedia.org/wiki/Pileipellishttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Grund1976-16https://en.wikipedia.org/wiki/Clamp_connectionhttps://en.wikipedia.org/wiki/Hyphahttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Tylutki1987II-15https://en.wikipedia.org/w/index.php?title=Suillus_brevipes&action=edit§ion=4https://en.wikipedia.org/wiki/Suillushttps://en.wikipedia.org/wiki/Edible_mushroomhttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Orr1979-18https://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Evenson-10https://en.wikipedia.org/wiki/Field_guidehttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Evenson-10https://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Weber1980-19https://en.wikipedia.org/wiki/Grizzly_bearhttps://en.wikipedia.org/wiki/Yellowstone_National_Parkhttps://en.wikipedia.org/wiki/Yellowstone_National_Parkhttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Mattson2002-20https://en.wikipedia.org/wiki/Fatty_acidhttps://en.wikipedia.org/wiki/Lipidhttps://en.wikipedia.org/wiki/Dry_matterhttps://en.wikipedia.org/wiki/Linoleic_acidhttps://en.wikipedia.org/wiki/Oleic_acidhttps://en.wikipedia.org/wiki/Palmitic_acidhttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Sumner1973-21https://en.wikipedia.org/wiki/Essential_fatty_acidhttps://en.wikipedia.org/wiki/Omega-6_fatty_acidhttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Russo2009-22https://en.wikipedia.org/w/index.php?title=Suillus_brevipes&action=edit§ion=5https://en.wikipedia.org/wiki/Suillus_granulatushttps://en.wikipedia.org/wiki/Suillus_albidipeshttps://en.wikipedia.org/wiki/Partial_veilhttps://en.wikipedia.org/wiki/Partial_veilhttps://en.wikipedia.org/wiki/Suillus_pallidicepshttps://en.wikipedia.org/w/index.php?title=Suillus_albivelatus&action=edit&redlink=1https://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Tylutki1987II-15https://en.wikipedia.org/wiki/Suillus_pungenshttps://en.wikipedia.org/wiki/Suillus_brevipes#cite_note-Orr1979-18
