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Amanita elephas Corner & Bas
"Pachyderm Death Cap"

Technical description (t.b.d.)

BRIEF DESCRIPTION: All information is taken from Corner and Bas (1962).

The cap of Amanita elephas is 90 - 100 mm wide, campanulate at first, then at maturity planar to plano-concave and subumbonate, with a nonstriate margin. It is dark sepia at first and pale sepia or pale sepia-gray with paler spots later; the paler spots may fall in two zones -- one at the margin and one surrounding the low central umbo. It is innately fibrillose and dry to viscid. One or two patches of volva may remain on the cap. The white flesh may turn slightly ochraceous when cut.

The gills are free and not crowded and number about 65; they are whitish cream and 9 - 10 mm broad. The short gills are rounded attenuate and 1 - 3 are placed between every pair of gills.

The stem is 120 x 10.5 mm, with a clavate to bulbous base 20 - 25 mm wide and slightly pointed on the bottom. It is white, solid, undecorated below the annulus and "somewhat floccose-scaly above." The annulus is 12 mm wide, "pendant from 30 mm below" the stem apex, "rather spreading, floccose-membranous, easily torn, white to cream," and triate above. The limbate volva is 28 - 35 mm high; its lower half is attached to the stem's basal bulb. The volva's limb is "thin but tenacious" and membranous, white, smooth, and clings close to the stem; it may have an even margin or be split on one side.

The spores from dried material measure 5.4 - 6.8 x 4.6 - 5.6 µm (from fresh material, 7.0 - 8.0 x 5.5 - 6.0 µm) and are subglobose to broadly ellipsoid to obovoid and amyloid. Clamps were not observed at the bases of basidia.

Amanita elephas was originally described from Singapore.

Its authors compared it with A. modesta Corner & Bas. It should be treated as deadly poisonous until more is known of this species.

Watercolor: Prof. E. J. H. Corner (Singapore, illustration from original description (Corner and Bas, 1962) reproduced by courtesy of Persoonia, Leiden, the Netherlands.)

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