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Technical description (t.b.d.)

BRIEF DESCRIPTION: The following is based on the description of Beeli (1935). Data from more recent collections has been added.

The cap of A. goossensiae is 20 - 70 mm wide, terracotta to brownish orange, plano-convex, and lightly depressed in the center at maturity. The cap can be without volval remnants or can be densely squamulose with bits of the inner layer of the volva that is typical of the volva in most species of Amanita section Amidella. The volval remnants are pallid in the above illustrations but become darker than the pileus ground color with aging. The margin of the cap is striate and appendiculate. The flesh of the cap is white and becomes pinkish when cut or bruised.

The gills are free, attenuate at both ends, faintly pinkish white, and 10 mm broad. The gills have markedly flocculent edges. Beeli provided no information on the short gills.

The stem is 100 - 120 x 6 - 10 (-25) mm long; white at first, and it bruises pinkish brown especially in flocculose areas in the lower half. There is a somewhat weakly structured annulus that is white, pendant, and superior; however, it often disappears or simply leave a flocculent ridge around the upper stem. The volva is saccate, up to 50 x 35 mm or larger and quite robust. The limbs are rather thick, and their external color is or becomes reddish ochraceous.

The spores [from recently collected material from Zambia] measure (7.0-) 9.3 - 13.9 (-14.5) x (3.8-) 4.1 - 4.9 (-5.1) µm and are elongate to cylindric to bacilliform and amyloid.

The species was described originally from Congo and is known from Central Africa.

It is of interest to compare this species with others in Amanita section Amidella. It has much in common with the type species of the section, Amanita volvata (Peck) Lloyd.  For African taxa of sect. Amidella collected in the same region as A. goossensiae, see A. fulvopulverulenta Beeli.  -- R. E. Tulloss

Photos: David Arora (Zambia (Copper Belt Prov.))

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Last change 17 Junly 2008.
This page is maintained by R. E. Tulloss.
Copyright 2003, 2004, 2005, 2008 by Rodham E. Tulloss.
Photographs copyright 2003 by David Arora.