Amanita nana - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella
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name Amanita nana
name status nomen acceptum
author Singer
english name "Little Steppe Lepidella"
intro

The following is largely based on the description of Bas (1969).

cap

The cap of Amanita nana is about 20 - 50 mm wide, convex to flat, probably white, dry, flocculose-felted, appendiculate, with a nonsulcate margin. The cap is covered with badly delimited, floccose-felted, probably white, adnate patches to scales at the center, sometimes with subpyramidal, felted warts.

gills

The gills are crowded, just free, proportionately rather broad, and ventricose. The short gills are rounded to attenuate.

stem

The stem is about 40 - 70 × 4 - 8 mm, solid, probably white, equal, with subfusiform or subclavate base. The stem bears a submedian to superior, smooth annulus with a thickened, warty edge. A floccose-felted to floccose-squamulose sheath of volval tissue is present, ending just above the expanded basal part; the upper edge of the sheath is sometimes free.

spores

The spores measure (9.0-) 9.2 - 11.0 (-12.0) × 6.2 - 7.8 (-8.2) µm and are amyloid and ellipsoid to elongate. Clamps are present at bases of basidia.

discussion The original description was based on material from the steppes or semi-desert of Kazakhstan. The species is also known from several sites within Pakistan. In the 1950's, Dr Sultan Ahmad reported that it was common in certain parts of eastern Pakistan.  Kreisel and Al-Fatimi (2008) reported this species from Yemen.  It is not a well-known species, but appears not to require a woody ectomycorrhizal symbiont.

Bas' stirps Nana contains only the present species.—R. E. Tulloss
brief editors RET

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