Cortinarus

Taxon Notes/Dist. Pileus Context Lamellae Stipe Veil Other
Cortinarus azureus subgenus Sericeocybe (Pileus silky & w/glistening particles, or fibrillose, stipe clavate, veil fibrillose, sometimes scaly), Deciduous and mixed woods 35-70 mm glabrous, dry shiny Young: violet or grey-lilac, becoming brownish,   young: bluish or lilac, violaceous, Older: rust-brown 60-120 x 80-100mm clavate, bluish, then paling silvery, below ochraceous   Spores 8-10x
6-8 m, subglobose
Cortinarus boulderensis subgenius Telamonia( pileus and stipe non-viscid, pileus hygrophanous) ,PNW 20-40 mm conic to campanulate/
plane silky, dull to violaceous brown darker in age
fragile, concolorous w/ pileus, fading to sordid vinaceous buff adnate w/ decurrent tooth, mod. close, grayish lilac 50-80 x 4-7 mm apex: dull violet, slightly bulbous base: pale brownish patches & zones of vinaceous red fibrils, KOH neg. odor and taste not distinctive. Spores:7-8 (9) x 4-5.5 m ellipsoid, verrucose, rusty brown in KOH.
Cortinarus canabarba (C. umidicola) subgenus Sericeocybe 40-122 mm hemispheric,dry, pale grayish brown w/ ochraceous to drab disc & violaceous margin, to browner   Dull cinnamon drab, then gray to dark-brown 60-120 x 10-21 mm (to 17-40 mm at base),very stout, clavate, apex grayish, sometimes w/ bluish cast brown KOH reaction slowly grayish-brown on cuticle, dark brown to blackish in cap context Spores: 8-10 (10.5) x 5.3-6 (6.6) m, ellipsoid, verrucose
Cortinarus cyanites subgenius Phlegmacium, (Pileus viscid, stipe dry equal to swollen) Deciduous and coniferous forests 30-70mm, dark violet,completely dry, thickly covered w/ yellow-brown scales   dark blue paler than cap, above finely brownly scaly, base thick-bulbous, cut surface slowly staining dark red-brown sparse Spores:9.5-11(12) x 5.5-6.5 m
Cortinarus olympianus subgenus Phlegmacium, PNW endemic 30-70 (100) mm broad, subviscid, violet or pale lilac becoming lilac white w/yellowish disc to white or cream often w/ rusty spots   pale pinkish lilac 40-60 x 8-10mm equal to marginate (base 15-20 mm) then tapering below sparse KOH reaction Pink to pinkish-red in both fresh and dry pileus cuticle Spores 8-10 x 5-6 m amygdaliform to slightly limoniform, moderately ornamented, rusty-brown in KOH
Cortinarus rainierensis subgenus Leprocybe (Pileus radially fibrillose to fibrillose scaly, dry, hygrophanous or not) 30-80 mm, orange-red,dry innately fibrillose-
squalmulose
  Ochraceous reddish-orange, darkening w/ age 50-80 (100) x 10-12 (15)mm pale to dark tawny, w/ fibrillose concolorous to yellowish concentric belts   Odor of radishes Spores 9-11 x 6.5-8 m, broadly ovate, punctate-
roughened, dark rusty brown in KOH
Cortinarus spilomius subgenus Sericecybe, Picea or Pinus often young grassy plantations 20-60 mm clay brown, silky, often pale, hygrophanous near margin.   young: pale bluish 50-80x5-10mm, often hollow whitish w/ clavate rusty red scales apex w/ bluish tinge fibrillose Spores: subglobose 6-8 x 5-6.5 m
Cortinarus tabularis subgenus Sericecybe 20-80mm red-brown, completely dry, glittering moderately, at margin more grey-brown   whitish clay then clay-brown 30-100x40-150 mm (base 20) whitish, below discoloring, pale ochraceous or brownish whitish-
ochraceous veil covers pileus
Spores:7-8 x 5.2-6.5 m subglobose
Cortinarus valgus subgenus Leprocybe, under birches and beeches 20-85mm, convex, brown w/ olivaceous tinge, smooth, silky, finely marbled when dry   grey w/ lilac tinge, then yellow rust-brown apex grey-blue, grey, lower light ochre-brownish, grey-ochraceous veil covers stipe at base Spores: 7.5-9 x 5-6.5 m, short elliptical
Cortinarus varipes subgenus Telemonia, PNW, Europe 35-72 mm obtuse to broadly umbonate w/ inrolled margin, edge rimose in age, bright brownish or ochraceous tawny w/ darker brown disc, moist to dry buff to creamy buff w/ slight yellowish discoloration deeply notched, ± subdistant, grayish, to ± yellowish to orangish brown 47-73x11-15 mm ventricose, pallid above w/ slight grayish lilac tinge w/ pale yellowish to orangish buff, swollen base scant KOH reaction Grayish-
brown/ brownish edge, brown on pileus cuticle. Spores: 6-7.2 (8-10)x4.2-5.5 m, punctate to moderately roughened, pip-shaped (ovoid-
subglobose) medium amber brown in KOH
Dermocybe humboldtensis subgenus Dermocybe (pileus and stipe yellowish to red or brownish. Gills vivid yellow, orange to carmine) PNW 30-50 mm, appressed fibrillose, young: olive-yellow sheen, disc pale brown, margin light yellow buff   adnate,close, olive-yellow to ± ochre-yellow 60-120x4-8 mm ± equal, fibrillose, dingy yellow to the base w/ covering of brownish fibrils   cap cuticle dark inky violet, becoming slowly purple brown in KOH Spores:7-9.2 x 4.5-5.5 m, light brown to fulvous in KOH, elliptic to ovate, verruculose;
Cortinarus magnivelatus sequenstrate (retains spores within) PNW California, Nevada 30-65 mm, convex to plano-convex, expanding w/ undulate outline, becoming shallowly depressed to umbonate, moist to dry, glabrous when young, occ.silky appressed, fibrillose to tomentose white unchanging adnate to depressed; young: white to light orange yellow, brownish orange to strong yellowish brown to strong yellowish brown when mature, unchanging when bruised,not fragile 15-60 x 10-30 mm broad at apex, somewhat bulbous at base, occ. equal to tapering slightly Persistent, heavy, thick membrane radially shredded at pileus on drying, remaining attached to stipe satiny-white Odor and taste not distinctive Spores 8.5-11 (14) x 5-8 m inequilateral in profile w/ laterally placed hilar apex, ellipsoid in face view minutely verrucose to rugulose,
Cortinarus verrucisporus sequestrate 30-60 mm; Young: convex, pale to plano-convex to plane, shallowly depressed w/age, freq. highly irregular & undulating in outline; margin strongly incurved, flesh up to 1 cm thick, yellow, unchanging when exposed, firm white, firm, confluent w/ stipe, 30 mm thick near stipe subdecurrent to adnate, close to subdistant, Young: pallid to "pale olive buff" to "amber brown",thin, becoming noticeabley crisped when dry, fragile, several tiers present margin entire concolorus obscure 10-15 mm long, 10-15mm broad at apex, equal to slightly bulbous, concolorous w/ pileus solid flesh yellow, unchanging when exposed permanent during all stages of development taste and odor not distinctive
Cortinarus wiebaeae sequestrate 60-130 mm broadly convex to nearly plane to depressed, radiating fibrils, white to tan colored handling & on drying, margin long remaining inrolled, dry & silky white, firm, confluent w/ stipe, 30 mm thick near stipe fresh and young:"hazel" (ferruginous), dark rusty brown in age, sinuate, broad (up to 13 mm) narrowed toward both extremities, crowded, numerous tiers of lamellulae present, very thin and fragile, edges eroded 40-90 mm long, 24-40 mm at apex, up to 50 mm thick at base, clavate, whitish when fresh w/in & w/out, solid, surface dry & coated w/ white fibrils from copious veil ending in a submembranous annulus extending from pileus margin to stipe & only in age shredding radially taste mild, odor faintly radish-like spore deposit "stanford brown" Spores 9-11 x 6-7.5 m, subelliptic in face view, obscurely inequilateral in profile, warty-rugulose