Technical description (t.b.d.)

BRIEF DESCRIPTION: The cap of A. sampajensis is 62 - 90 mm wide, ovate when young, becoming planar, smooth, moist, fleshy, nonappendiculate, with a sulcate margin. The cap is isabelline to hazel and fades on drying. The volva is present as a thin indistinct layer of hyaline fragments.

The gills are free (remote), close, white, becoming off-white, lanceolate. Short gills are present.

The stem is 180 - 210 x 16 - 18 mm, dark olivaceous brown, narrowing upward, lacking surface decoration, and exannulate. The flesh is hollow. The saccate volva is membranous and formed two lobes in the type material..

The spores measure (9.4-) 9.8 - 11.2 (-12.0) x 10.0 - 7.4 (-10.8) µm and are globose to subglobose and inamyloid. Clamps are absent at bases of basidia.

This species is only known from the type, a collection made in western India (Karnataka state).

Amanita sampajensis is a member of a relatively small group of tropical amanitas that have an upper layer of the cap skin comprising a gelatinous matrix in which are to be found ungelatinized, pigmented hyphae. Another member of this group is A. dunicola Guzmán and A. flammeola Pegler & Pierce. -- R. E. Tulloss

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Last changed 7 July 2006.
This page is maintained by R. E. Tulloss.
Copyright 2004, 2006 by Rodham E. Tulloss.