Amanita pseudoprinceps - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella
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name Amanita pseudoprinceps
name status nomen acceptum
author Yang-Yang Cui, Qing Cai & Zhu L. Yang
english name "Masquerading Slender Caesar"
intro This text is derived from the original description of Amanita pseudoprinceps.  The fruiting bodies of Amanita pseudoprinceps are medium-sized to large.
cap The cap is 70 – 120 mm wide, plano-convex to planar, usually yellow-brown to brown over the entire cap, occasionally dark brown to brown in the center, gradually changing towards the margin to cream to white. The cap’s margin is radially grooved for 20% to 30% of the cap's radius.  There is no material hanging from the cap's edge.  The flesh is white.
gills The gills are free, crowded, and white to cream.  The short gills are truncate and plentiful.
stem The stem is 100 – 150 × 10 – 15 mm, nearly cylindric or narrowing upwards; its surface is white to dirty white, covered with dirty white to brownish fibrils; the stem lacks a basal bulb.  At the stem's base, the volva is saccate, 40 – 60 × 30 – 40 mm, membranous, outer surface is white to dirty white, inner surface is brownish.  The ring is white to cream.
odor/taste The odor and taste were not recorded for the present species.
spores The spores measure 10.0 – 12.0 × 8.5 – 10.5 µm and are subglobose to broadly ellipsoid and inamyloid.  Clamps are common at bases of basidia.
discussion Amanita pseudoprinceps is currently known to occur only in China, Nepal and Thailand.  Amanita pseudoprinceps can be confused with A. princeps Corner & Bas.  However, the latter differs from the former in its relatively larger fruiting body with a cap ca. 10 – 20 cm in diam., and a white saccate volva with its outer surface cracking and peeling into thin, brownish patches.—Yang-Yang Cui and Rachel Warner
brief editors RET

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