Fungi Species List

Sporocarp
Fruiting body arising from a suberumpent egg, up to 5.0 cm tall, 4.0 cm in diameter, dense, white to lilac-colored rhizomorphs at the base; exoperidium glabrous, membranous, white, sometimes tinged lilac to brown, over a gelatinous under-layer; egg rupturing with elongation of four to seven slender arms, up to 9.0 cm in length, at first erect, the tips clasped, soon recurved; inner surface of arms shallowly corrugate, sordid pinkish-red, the upper two-thirds coated with a slimy, dark-olive gleba; exterior surface of arms pale-pink, wrinkled, pitted; arms fused to a short, hollow pseudostipe; context thin, fragile; odor strongly fetid at maturity; taste not investigated.

	Oligoporus caesius
	California Fungi—Oligoporus caesius

Oligoporus fragilis

Sporocarp
Fruiting body annual, effused-reflexed, sessile, elongate fan-shaped, 3.0-7.0 cm long, 2.0-3.0 cm wide, 0.5-1.0 cm thick; margin wavy, sometimes over-lapping the tube layer; upper surface white, tomentose, becoming matted in age, azonate, bruising or weathering tawny-brown to vinaceous-brown, eventually dark rusty-brown; context when young soft, white, resilient, up to 0.5 cm thick, discoloring like the upper surface, in age rigid, brownish; odor slightly pungent; taste somewhat bitter.

Oligoporus leucospongia

Sporocarp
Fruiting body annual, effused-reflexed, shelving, 4.0-13.0 cm long, up to 5.0 cm in width; cap shell-shaped, the margin persistently incurved, arching over, and partially covering the pore surface; upper surface when young covered with a whitish matted-tomentum, becoming buff to pale-tan in age, eventually nearly glabrous to sometimes wrinkled; context approximately 1.0-2.0 cm thick, two-layered, the upper half tan, cottony, soft, the lower portion whitish and rigid; odor not distinctive; taste acrid to somewhat bitter.

	Omphalina epichysium: Arrhenia epichysium
	Pileus Cap 1.0-3.0 cm broad, convex-depressed to infundibuliform; margin incurved, then decurved; surface translucent-striate, hygrophanous, grey-brown to dingy-brown, fading to lighter shades, glabrous except furfuraceous at the center; context thin, approximately 1.0 mm thick, watery-brown, unchanging; odor and taste mild.

	Omphalina ericetorum: Lichenomphalia umbellifera
	California Fungi—Lichenomphalia umbellifera

	Omphalina pyxidata
	Pileus Cap 0.5-2.0 cm broad, convex, becoming convex-depressed to infundibulate; margin incurved, then decurved to plane, sometimes appearing scalloped in age; surface glabrous, striate-sulcate to near the disc, vinaceous-brown, hygrophanous, fading to pinkish-tan, finally pale-tan; context thin, pallid; odor and taste mild.

	Omphalotus olivascens
	Pileus Cap 6-18 cm broad, convex, broadly convex at maturity; margin incurved at first, expanding and becoming wavy, upturned in age; surface smooth, moist, dull orange to orange-brown, developing olive tones; flesh thin, pliant, same color as cap; odor and taste mild.

Otidea alutacea

Sporocarp
Fruiting body 2-6 cm tall, 2-4 cm broad, erect-cupulate, blunt to truncate in profile, split down one side, tapering below, substipitate, or the stipe lacking; margin wavy to contorted when fruiting in clusters; hymenial surface pale-dull-brown to light-greyish-brown; exterior surface light-brown, finely pubescent to nearly glabrous; context up to 2 mm thick, pliant, pallid; odor and taste mild.