Summary:
Features include 1) a fan-shaped, kidney-shaped or irregularly lobed cap up to 4cm x 2cm that is hygrophanous and pallid to pinkish to pale orange to caramel, 2) young gills that are whitish to peach, 3) a stem that is lateral or absent, 4) growth on alder wood, 5) a yellow-cream spore deposit, and 6) cylindric spores. The subsp. in North America is pacificus Libonati-Barnes & Redhead: subsp. longinquus is restricted to the southern hemisphere. The correct name may be 1) Pleurotopsis longinqua (Berk.) E. Horak , Aust. J. Bot., Suppl. Ser. 10: 7 (1983) or 2) Scytinotus longinquus (Berk.) Thorn, in R Greg Thorn Index Fungorum 10:1. 2012. The description is derived from Libonati-Barnes(2) except where noted.

Cap:
0.2-4cm wide and 0.1-2cm long, rounded when young, at maturity fan-shaped, kidney-shaped or irregularly lobed, convex in profile but often depressed near attachment, margin inrolled; hygrophanous, pale ivory, faint peach, or tan, when old becoming pinkish on a camel brown background, and finally in some specimens brown with purple-brown discoloration, when dried becoming translucent waxy yellow or opaque golden brown or purple-brown; bald, translucent when wet and often viscid, opaque and concentrically wrinkled when dry

Flesh:
0.06-0.1cm thick, firm, fibrous; white to pale pinkish tan

Gills:
short decurrent onto stem or pseudostem, 0.1-0.3cm broad, close when young, subdistant when old (16-36 per centimeter at margin, 14-35 per centimeter at stem); ivory, pale yellow-cream, or peach like young cap, sometimes drying with grayish tint; entire, sometimes transverse wrinkles present

Stem:
absent, or when present lateral, always fairly broad at gill attachment, 0.1-0.9cm x 0.1-0.5cm, solid becoming hollow; "ivory, yellow-cream, peach, or brown"; often frosted on inferior surface, usually with some white, coarse tomentum toward base and a small mat of hyphae extending onto substrate

Odor:
not distinctive

Taste:
not distinctive

Microscopic spores:
spores 6-11.5(13.5) x 3-5.0(6) microns, elliptic, oblong or cylindric, occasionally slightly dumbbell-shaped, kidney-shaped or curved-sausage-shaped, smooth, amyloid; basidia 4-spored, 30-41.5 x 4-6.2 microns, narrowly clavate, often with multiple drops; pleurocystidia none, cheilocystidia absent in young gills, sparsely scattered and inconspicuous, or sometimes erumpent in small fascicles, clavate, irregular, filiform or capitate, ultimately branched and coralliform, 22-50 x 2-6 microns, with necks 1.3 microns, the bases sometimes slightly gelatinized, gill edges occasionally with irregular deposits of brown amorphous material up to 25 microns diameter

Spore deposit:
dingy yellow-cream

Notes:
It is found along the coast of BC, WA, and OR, and also Argentina, New Zealand, and Australia, (Redhead(6)).

EDIBILITY

Synonyms and Alternate Names:
Pleurotopsis longinqua (Berk.) E. Horak