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Technical description not yet available.

BRIEF DESCRIPTION: This description is based on that of Beeli (1935) and illustrations appearing in Gilbert's "Amanitaceae" (1940-41).

The cap of A. bingensis is 40 - 50 mm wide, fleshy and firm over the stem, but merely a membrane in the outer third of the cap radius.  Its margin is striate for at least one third of the cap radius. It is pale yellow and covered with orange, pulverulent remnants of the volva.  These are most densely placed over the center.  Its context is white..

The gills are subfree, rounded at the cap margin, white, and edged with yellow pulverulence.  In examining the remains of the type, one short gill was found; it was subtruncate.

The stipe is 70 - 75 × 5 - 7 mm, yellow to yellow-orange and cylindric, with a white bulbous (ellipsoid) base about 18 x 11 mm and largely white; its context is white and hollow. The stipe is exannulate and decorated in the lower portion with orange remains of the pulverulent volva organized in one to three ridges around the bulb above its broadest part.

The taste is said to be mild. The odor is not recorded.

Measuring four, properly oriented, spores from the drawings of E.-J. Gilbert (1940) yields the very approximate dimensions of 6.5 - 8 × 5 - 6.5 µm (broadly ellipsoid to ellipsoid). Gilbert reported the spores to be inamyloid. In my examination of the type, I found remaining, undamaged spores to be (5.5-) 5.7 - 6.9 (-7.0) × (4.4-) 4.5 - 5.3 (-5.6) µm Clamps are probably not present at bases of basidia.

Amanita bingensis occurs scattered in dry tropical forest.

This species, described originally from Congo, is known only from Central Africa.

A somewhat similar, but more robust and redder entity has been collected in Zambia.  This is depicted in the picturebook/checklist for subsaharan Africa (here). -- R. E. Tulloss

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Last changed 12 July 2008.
This page maintained by R. E. Tulloss
Copyright 2003, 2004, 2007, 2008 by Rodham E. Tulloss.
Photograph copyright 2003 by David Arora.