page_title: Mycena flavoalba
section_title: Description
hierarchical_section_title: Mycena flavoalba / Description
caption_attribution_description: Mycena spec. from Commanster, Belgium. The determination of the species shown in this picture has been verified.
context_page_description: Mycena flavoalba, commonly known as the ivory bonnet, is a species of inedible mushroom in the family Mycenaceae. The cap is initially conical in shape, before becoming convex and then flattening out; it may reach dimensions of up to 1.5 cm across. The cap color is ivory-white to yellowish white, sometimes more yellowish at the center. The tubular stems are up to 8 cm long and 2.5 mm thick, and have long, coarse white hairs at their bases. The mushroom is found in Europe, the Middle East, and North America, where it grows scattered or in dense groups under conifers and on humus in oak woods.
context_section_description: The cap of M. flavoalba is 1–2 cm (0.4–0.8 in) in diameter, conical when young, becoming somewhat bell-shaped, broadly conic or at times nearly convex. It may develop a papilla (a nipple-like structure) in its center. The cap margin is initially pressed against the stem, but in maturity either flares out or curves inward slightly. The cap surface is smooth, moist, and partially translucent, so that the outline of the gills underneath the cap may be seen. The mushroom is hygrophanous (changing color as it loses or gains moisture), being cream-buff to yellowish initially, with a paler (almost white) margin, and fading to buff in the center and yellowish-white along the margin when dry. The flesh is yellowish to white, thick under the disc but otherwise thin, moderately fragile, and without any distinctive odor and taste.
  The gills are ascending and somewhat hooked or toothed, narrow at first but becoming rather broad (2.5 mm and becoming 3–4 mm). They are nearly equal in width throughout or slightly ventricose in age, with a spacing that is close to subdistant. About 18–24 gills reach the stem, with two tiers of lamellulae (short gills that do not extend fully from the cap margin to the stem) that may develop veins running between them. The gills are white to creamy-white with edges that are even and whitish, and waxy in appearance and consistency. The stem is 3–8 cm (1.2–3.1 in) long, 1–2.5 mm (0.04–0.10 in) thick, equal, tubular, somewhat elastic, cartilaginous, and not particularly fragile. The base of the stem is either strigose (covered with sharp, straight, stiff white hairs) or surrounded with a matted white mycelium. Above the base, the stem is smooth, and pruinose toward the apex. When moist it is translucent with slight ripples running transversely, and white to pale yellow in color. Mycena flavoalba is considered inedible.
caption: The whitish to creamy white gills are waxy in appearance and consistency.
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