Mycena

Taxon	Notes:	Dist.	Pileus	Color	Surface	Lamellae	Stipe	Spores	Cystidia	Pellis
Mycena
Mycena hudsoniana	Fragile stipe. Splits longitudinally. Larger size. Gregarious on needle beds	PNW	20-50 mm. Conic to Campanulate.	Black at center. Gray towards margin	Moist & glabrous	Ascending-adnate often with a short decurrent tooth. Pale smoky gray	30-50x1.5-3 mm. Cylindric, fragile hollow. Base covered with white fibrils. Gray pale to dark.	8-10 x 5-6 µm. Pip-shaped. Smooth, amyloid. White un deposit.	Cheilocystidia: Numerous. Two types. 21-45 x 8-22 µm. Clavate. Pleurocystidia: Present	Pileipellis:Repent hyphae, 1.5-3.5 µm. Numerous diverticul wart-like to long & branched. Stipitipellis:Diverticulate hyphae
Mycena lilacifolia or Chromosera cyanophylla	Yellow, visid cap, lilac gills. Deep reddish brown of the pileus in iodine	Western N. Am. & Europe	3-25 mm. Convex with a flattened to depressed disc and incurve margin when young.	Shiny to dull. Dull lavender when young. Pale yellow, Amber, Honey, Olivaceous buff or bright yellow with a paler margin. Fading to pale yellow or almost white image	Pellucid, Striate. Viscid to lubricous. Glabrous.	Arcuate decurrent. Subdistant to moderately close. Pale vinaceous, pale rosy to pale lilac	10-30(-45) x 1-2.5 mm. Cartilaginous. Fragile Viscid to slimy when wet. Amber with grayish rose to vinaceous on the apex. Base vinaceous to lilac mycelium.	6-9(-11)x 3.5-4.5 µm. Amygdaliform to ellipsoid. Smooth. Inamyloid. Acyanophilous. White in deposit.	Cheilocystidia: Absent. Pleurocystidia: Absent	Pileipellis:Thin-collapsed Ixotrichodermium. Hyphae covered with small, globose, yellow refractive globules. Stipitipellis:Similar to pilepellis
Mycena marginella or Hydropus marginellus	Brown marginate gills & Drops of clear liquid which ooze from the cap when is cut.	Wide dist. in North Am. Rare in PNW.	6-20 mm. Convex to Campanulate to broadly convex.	Disc fuscous to soot brown. Margin drab brown to brown, greyish brown or yellowish brown.	Pellucid-striate to striate. Sometimes crenulate. Smooth dull-dry finely pruinose.	Broadly adnate-Arcuate subdecurrent	10-25(-30) x 1-2. Sometimes curved, brittle cartilaginous. Dull dry, pruinose. Fistulose. Dark grey-Blackish brown.	6-7.5 x 3-4.5 µm. ellipsoid, smooth, hyaline, weakly amyloid. White in deposit.	Cheiocystidia:Abundant. Saccate to broadly clavate. 35-50x15-20. Fusoid ventricose 40-60 x 8-12. Both with sordid brown content. Pleurocystidia: Nearly absent	Pileipellis:Subhymeniform. Broadly clavate or fusoid-ventricose cells 25-50 x 10-20 (-30). Dull brown content. Stipitipellis:Cylindrical hyphae giving rise to terminal Caulocystidia, 25-60 x 8-15 µm.
Mycena monticola	Cap red to pink. Cheileocystidea with projections up to 2 microns. Gregarious under pine. At elev. 3500-4500 feet.	Oregon	10-30 mm. Conic to Campanulate	Disc red. Margin flame red to pinkish red.	Pellucid-Striate to slightly sulcate.	Ascending-adnate. Often with a short decurrent tooth. White to pink.	40-75 x 1-2.5. Cylindric, pruinose at apex. Base covered with coarse white fibrils. Pink overall at first turning dingy brown from the base upwards in age.	8-10.5 x 5-5.8 µm. Pip-shaped, smooth, weakly amyloid. White in deposit.	Cheilocystidia:14.5-35 (49) x 4.5-18 µm. Subcylindric to clavate. Pleurocystidia: Absent.	Pileipellis:Repent hyphae, 2-3.5 covered with simple branched diverticula 2-2.3 µm long. Hypodermium of dextrinoid hyphae inflated up to 45 µm.. Stipitipellis:Repent hyphae with scattererd diverticula 1-10 µm long.
Mycena overholtsii	Snow-bank. Caespitose.	West USA.	20-50 mm. Convex becoming plano-convex. pellucid striate in age. Odor pungent, yeast-like.	Sooty grey on the disc & slightly paler on the amrgin (young). Fading in age & with moisture loss on the disc to pale grey. Margin becoming grayish-white to dingy buff or cream.	Slightly lubricous when moist. Subhygrophanus, glabrous.	Ascending to horizontal. Broadly adnate to subdecurrent. Close to subdistant, broad. White to pale grey, often staining yellowish or greyish where bruised.	40-100x2-6mm. Cylindric or enlarged and connate at base. Teret or compressed. Puberulus to glabrous above, base covered whit a dense layer of white to buff downy tomentum. Apex white to buff. Base concolorus but becoming dingy reddish brown	6-7.5x3-4.5 µm. Narrowly, pip-shaped, smooth, amyloid. White in deposit.	Cheilocystidia:45-65x2-5.5µm. Scattered, subcylindric to subfusoid, smooth, non-diverticulate, hyaline. Pleurocystidia:Uncommon, similar to Cheilocystidia.	Pileipellis:Ixocutis of repent hyphae, 1.5-3.5µm, smooth or with often scattered simple diverticula embedded in a gelatinous matrix. Pileus trama dextrinoid. Stipitipellis:A cutis of repent smooth or with a few scattered diverticula with ir
Mycena quinaultensis	Visid cap. Densely gregarious on senecent needles of western-red cedar, D.fir, Redwood. Common in the fall.	PNW.	10-25(-40) mm. Obtusely conic to campanulate becoming obtusely umbonate and often with a small papilla on top of umbo. Wrinkled, pellucid-striate to sulcate. Glabrous, viscid.	Entirely brownish-black when young. Disc remaining so or fading slightly in age. Margin fading through brown to buff brown.	Wrinkled, pellucid-striate to sulcate. Glabrous, viscid.	Ascending-adnate or with a short decurrent tooth. Subdistant to distant. Moderately brown. White at first then grey in age.	40-70x1.5-3mm. Cylindric, finely pruinose or more commonly glabrous. BAse with coarse white fibrils. Viscid, brown to pale brown overall.	8-9.5x4.5-5µm. Pip-shaped, smooth, amyloid. White in deposit.	Cheilocystidia: Conspicuous, 58-95x10-18, fusiform to subcylindric. Frequently long-pedicellate, hyaline. Conspicuous. Pleurocystidia: Conspicuous.	Pilei-pellis: Ixocutis of repent, smooth hyphae, 2-4.5µm, embedded in a gelatinous matrix. Tramal tissues inamyloid. Stipiti-pellis: Similar to pileipellis with curved poorly differentiated terminal cells.
Mycena tenax	Strong bad odor and taste. Viscid cap and stipe. Gelatinous gill edges. Large pointed pleurocystidia. Four layers of tissue in the pileus.	PNW, Ontario, Nova Scotia, N. York	10-30 mm. Convex to campanulate when young to plano-convex	Fuscous overall when young fading in age and with moisture loss to pale fuscous or dark ash-grey on the disc and pale grey on the margin.	Pellucid-striate to shallowly sulcate covered with tenacious gelatinous pellicle. Lubricous to viscid. Glabrous	Ascending, adnate to broadly adnate with a subdecurrent tooth close to subdistant. Pale gray.	5-75x2-3 mm. Cylindrical, slightly broad at the base. Viscid, pruinose to pubescent at apex. Glabrous below. Concolorus.	6.5-8 x 3.5-4.5 µm, ellipsoid, smooth, hyaline, amyloid. White in deposit.	Cheilocystidia:9-20x4.5-10 µm. In a sterile band, embedded in a gelatinous matrix, Clavate. Pleurocystidia:27-105x9-16 µm, fusiform, acute, smooth.	Pileipellis:Ixocutis-hyphae 1.5-3.5 µm, cylindrical, embedded in a gelatinous matrix. Hypodermium of highly inflated dextrinoid cells. Stipitipellis:Similar to pileipellis. Caulocystidia 10-20x3-8 µm.