Summary:
Section Rhodopolia. Entoloma speculum is recognized by a light colored to whitish, hygrophanous, translucent-striate cap and a farinaceous odor. The description derived from Largent(1).

Cap:
3-7.5cm across, broadly convex to flat to uplifted, margin incurved then decurved [downcurved] at first, entire to eroded, often exceeding gills; cap hygrophanous in mottled fashion, dingy grayish straw to grayish orange, remaining so on disc, elsewhere becoming orange-white to near white when faded; translucent-striate halfway to disc, moist, bald

Flesh:
0.3-0.7cm thick, "very fragile and splitting radially with ease"; white to pallid

Gills:
adnate, sinuate-depressed, or uncinate, subdistant, moderately broad (0.3-0.8cm broad); whitish, [presumably becoming pinkish], edges colored as faces; edges smooth then slightly eroded

Stem:
5-9.5cm x 0.4-0.8cm at top, widening downward, 0.5-1cm wide at clavate base; white becoming pallid, "sometimes becoming pale orange at base"; bald to slightly longitudinally striate, satiny at first

Veil:
[none]

Odor:
strongly farinaceous when crushed

Taste:
farinaceous

Microscopic spores:
spores 6.5-9.9 x 5.2-8.5 microns, 5-6 sided, distinctly angular, [smooth, inamyloid]; basidia 4-spored; pleurocystidia absent; cheilocystidia absent; clamp connections present in all parts; cap cuticle a cutis, pileocystidia cylindric; stem cuticle at top composed of clusters of basidiole-like cells, caulocystidia absent; pigmentation colorless, not incrusted

Spore deposit:
[presumably pinkish brown]

Notes:
Collections were examined from BC, WA, OR, ID, and CA, (Largent).

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