Technical Description. (t.b.d.)

BRIEF DESCRIPTION: Description based on Reid (1980).

The cap of Amanita griseovelata is 45 - 55 mm wide, applanate, becoming slightly depressed at the center, slate-gray with pink tints to almost black at the disc, polished to slightly viscid, with a smooth margin. The volva remnants are present as pale gray, felty-pruinose remnants, more obvious toward the center where they form very thin, irregular patches. Near the cap margin the volva is present as web-like minute scales (lens). The flesh is white.

The gills are white.

The stem is up to 60 x 10 mm, cylindric or narrowing slightly upwards, white, ornamented with minute, scurfy zig-zag bands especially toward the top, sometimes with a short, rooting base. The ring falls away in "snow-like debris." No volval remnants are to be found on the stem base. The flesh is white.

The spores measure 7.0 - 10.0 (-11.5) x 6.8 - 8.5 (-10.5)  µm and are subglobose to broadly ellipsoid, sometimes triangular in top view [spores should not be measured in this view. --RET] and nonamyloid.  Clamps are absent at base of basidia.

This species was originally described from Victoria, Australia. Reid knew this species from two sites. No ecological information was provided. This species does not key out in Bas' thesis (1969). Because of the characteristics of its volva, it could belong in Bas' stirps Straminea or in his stirps Grossa, near A. subalbida Cleland. The spores of A. griseovelata, however, are "rounder" thant the known species in either of these groups. -- R. E. Tulloss

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Last changed 26 December 2006.
This page is maintained by R. E. Tulloss.
Copyright 2005, 2006 by Rodham E. Tulloss.