Description
Immature Mature Maturation of A. fulva in three stages - an emergent (far left), an immature (middle) and a mature specimen (right). Note the glistening brown caps, smooth white stems and brown-tinged volvas.The cap is orange-brown, paler towards the margin, and darker (even very dark brown) in the center, up to 10 cm in diameter. It develops an umbo when expanded, and has a strongly striated margin. Its surface is smooth, slightly sticky and slippery when moist and glistens; later it may dry. The gills are free, close, and broad. The flesh is white to cream. The stem or stipe is white and smooth or powdery, sometimes tinged with orange-brown and with very fine hairs. It is slender, ringless, hollow and quite fragile, tapering towards the top; up to 15 cm tall and 1 - 1.5 cm in thickness. The universal veil which initially encapsulates the fruiting body is torn and develops into a white, sack-like volva with characteristic rusty-brown blemishes. The cap is usually free of volval remnants. Infrequently, roughly polygonal pieces of the veil may remain on the surface. The spores are white, 9 x 12 microns or (9.0-) 10.0 - 12.5 (-19.3) x (8.2-) 9.3 - 12.0 (-15.5) µm in size, globose; nonamyloid.
Read more about this topic: Amanita Fulva
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