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 Add this item to the list  226162 NO1
Page number:190 
Description type:Non-original description 
Description:Agaricus endoxanthus Berk. & Broome, J. Linn. Soc. Bot. 11: 548. 1871. Pl. 2, 3f-h
Pileus 65 mm diam., convex to plano-convex; disc with a broad, flattened or slightly depressed umbo; pileus margin exceeding the lamellae as a white edge; surface dry, covered by brownish-grey (8E2) to grey (8E5) fibrils, radially fissured exposing the underlying white context that turns pink in wet conditions; at disc fibrils darker and aggregated into small, scattered fibrillose squamules. Context firm, white. Lamellae free, crowded, with 10 or more series of lamellulae, up to 4 mm broad, straight or ventricose, greyish red to dull red (8C3) when young, brown to dark brown (8F4) with age; edges paler than the sides. Stipe 60 x 4-12 mm, cylindrical below, with a slightly tapered apex: base slightly swallowed with white rhizomorphs, hollow; surface both above and below the annulus glabrous, brownish grey (8E2). Annulus superior, persistent, pendent, single, up to 11 mm broad; lower surface slightly floccose; edge entire, white, and sometimes with brown granules. Odor indistinct, not phenolic or almond-like. Base of stipe and centre of disc strongly staining yellow on cutting, without color change on touching.
Macrochemical reactions KOH reaction yellow; Schäffer reaction negative.
Spores 5-6 x 3-4 µm [x = 5.4 ± 0.6 x 3.5 ± 0.5 µm, Q = 1.25-2, Qm = 1.55 ± 0.45, n = 20], ellipsoid with attenuate apex in most cases, without germ pore, smooth, brown. Basidia 12-17 x 5-7 µm, clavate, 4-spored. Cheilocystidia (9-)11- 17 x 8-12 µm, rarely seen in old specimens, mostly pyriform, some turbinate or subsphaerical, hyaline, smooth. Pleurocystidia absent. Pileipellis a cutis, composed of cells variable in size and shape, many 25-44 x 17-25 µm, others 17-25 x 5-7.5 µm, distinctly constricted at the septa, with dark brown vacuolar pigments. Annulus composed of hyphae of 5-7.5 µm diam., which are hyaline, smooth and curved. Stipitipellis with hyphae similar to those of the pileipellis, but slightly smaller.
Habit solitary in soil, in open areas of forest.
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