Amanita tristis Corner & Bas
"Somber Amanita"


Technical description not yet available.

BRIEF DESCRIPTION: The following is based on the original description by Corner and Bas (1962).

The cap is 60 - 80 mm wide, plano-convex with a slightly depressed center, dry or slightly viscid, dark fuscous-gray over the center, paler toward the margin, with darker, fibrillose streaks, with a nonstriate margin. The cap is set with small, conical to wart-like, pale grayish remnants of volva, diminishing in size toward the margin.

The gills are free, crowded, intermixed with attenuate small ones, and white to very pale ochraceous.

The stem is 70 - 80 x 8 - 10 mm, solid, pale gray at the lower part, with the upper part of the bulb set with concentric circles of pale grayish to whitish, thick, flat, small warts.

The spores measure 4.9 - 6.1 (-7.0) x 4.3 - 4.6 µm and are broadly ellipsoid to ellipsoid (occasionally, subglobose) and amyloid. Clamps were not observed at the bases of basidia.

This species was described from Singapore.

See, also, Amanita sepiacea S. Imai and A. squamosa (Massee) Corner & Bas nom. prov. -- R. E. Tulloss

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

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Last change 19 August 2004.
This page is maintained by
R. E. Tulloss
Copyright 2003, 2004 by R. E. Tulloss
Watercolors copyright 1962 by Persoonia.