Observation 141624: Russula subtilis Burlingham
When: 2012-08-09

Notes: Scattered in soil embankment near Quercus, Pinus, Fagus, and Tsuga near Chestnut
Branch trail, Big Creek, GSMNP, NC
Pileus: 37-39mm, 10A2-3, 11B4, 10C6, applanate, broadly depressed (funnel shaped),
smooth, viscid in disc, minutely punctate with crustations or fibrillose tufts (encrusted),
shiny; margin smooth, gill edges protruding past cuticle, straight; context white, solid,
soft; odor like baked apples, sweet, taste like A. bisporus and oniony; cuticle peels almost entirely; KOH cream; SP between B and C
Lamellae: white, adnate high on expanded stipe, very narrow, forking from base, even;
guaiac –
Stipe: 35-38 × 6-8mm, 10A4 dotted hue covering most of stipe, white at apex and base,
single, smooth, soft; context white, solid, soft, parts turning brown; guaiac , PDAB -,
FeSO4 pinkish on surface and context, SV -; DJ/ILO/NP/QT
Spore: subglobose, (7.2
)7.1-6.7-6.3 × (6.5-)6.0-5.7-5.3 µm, Q= (1.28-)1.26-1.19-1.12(-1.1), amyloid plage; ornamentation amyloid warts with rare connectives, (0.35-)0.4-0.54-0.67(0.98) µm
Cystidia: scattered, cylindrical to broadly cylindrical, hyaline, (48-)43-38-32(-30) × (13.3-)13.1-12.1-11.1(-10.4) µm
Pileipellis: orthochromatic, entire pellis ~370 µm, gel layer extending past hyphae, 70-80 µm from beginning of end cells to end of gel layer, end cells 2-5 µm thick, hyaline, with septations, clavate apex, SV -; subpellis is ixocutis with interwoven hyphae

This collection did NOT taste acrid and the pileipellis is an ixocutis not pseudoparenchymous.

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Used references: Kibby & Fatto key

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Created: 2013-08-02 07:28:37 AEST (+1000)
Last modified: 2013-08-02 07:28:40 AEST (+1000)
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