Amanita allostraminea - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella
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name Amanita allostraminea
name status nomen acceptum
author A. E. Wood
english name "Shadow of a Straw Lepidella"
intro The following is largely based on the original description (Wood 1997).
cap The cap of Amanita allostraminea is up to 120 mm wide, white to ivory, convex to plane, smooth, dry, with a nonstriate and not clearly appendiculate margin.  The cap is decorated with small, flat, low, membranous scales on the outer part; the scales are concolorous with the cap.
gills The gills are free, thick, subdistant, deep cream, with a concolorous margin.  Short gills are present in at least one series.
stem The stem is up to 140 × 20 mm, equal, smooth, and white to off-white. The ring is prominent, persistent, membranous, skirt-like, cream, and not striate on the upper surface.  The base is bulbous to slightly top-shaped, white with scattered concentric rings of volval remains.  Wood states it also bears "scattered buff marks."
odor/taste Odor and taste were not described for this species.
spores The spores measure 9.9 - 11.4 (-13.5) × 8.4 - 10.5 (-11.1) µm and are subglobose to broadly ellipsoid and amyloid.  Clamps are sparse to rare at bases of basidia.
discussion Wood describes this species from New South Wales, Australia as occurring in association with Allocasuarina.  So far as we know, this species is known only from the type specimen.

As Wood states, more material of this species is necessary to truly understand the microscopic anatomy and proper systematic placement.  One curiosity is his description of the volva as having an upper layer dominated by inflated cells and a lower level dominated by hyphae.  This form of volva is not typical of stirps Grossa, and, if confirmed for this species, suggests possible placement in either stirps Ravenelii, or stirps Solitaria.—R. E. Tulloss and L. Possiel
brief editors RET

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