Amanita cinderellae - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella
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name Amanita cinderellae
name status nomen provisorum
author Tulloss
english name "Cinderella's Amanita"
synonyms
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  • 1. A. cinderella, Washington Crossing St. Pk., Mercer Co., New Jersey, U.S.A.

    • intro The stipe of Amanita cinderellae bears a distinct, though weakly structured ring; and its volva is very weakly structured.  This species appears to be rather rare.

    Th present species is provisionally named for Cinderella because of the ragged, grayish skirt on the stem.
    cap The cap of A. cinderellae is 64 - 73 mm wide, pale umbrinous gray, not changing when bruised, virgate with pallid streaks, at first hemispheric with a slight umbo, then bell-shaped to broadly bell-shaped, subviscid to tacky, and subshiny.  The flesh of the cap is white to off-white to pallid beige, sometimes grayish above the stem and under the cap's skin, and not changing when cut or bruised.  The cap's margin is striate for about one-third of the cap's radius.  Volval remnants are usually lacking from the cap.
    gills The gills of this species are free to narrowly adnate, subcrowded, dingy white to off-white to pale cream, unchanging when cut or bruised, and occasionally forking.  The short gills are squarely cut off, plentiful, of widely varying lengths, and unevenly distributed; they are sometimes attached at the stipe end to an adjacent gill.
    stem The stem is about 94 - 99 × 9.5 - 12 mm, pale gray, and becoming grayer with maturity.  The stem's flesh is pale gray to beige, darker toward the top and near the stem's surface, and unchanging when cut or bruised.  The ring on the stem is skirt-like at first, its texture is somewhat like that of a thin layer of felt, and is weak to very weak; at first it is white on the upper side and gray below.  Eventually it becomes entirely gray, tears radially, and is eventually lost.  While it persists, it is finely striate above (use a 10× lens) and smooth below. The volva is present on the stem's base as a weakly structured sack, tending to break up into smooth, up to 1.5 - 4.5 mm wide, somewhat rounded warts, which can easily be left in the substrate during collection.  The volva is white at first, becoming gray, with the highest point on the volva (when present) up to 30 mm from the stem's base.
    odor/taste The odor of this species is not distinctive.
    spores The spores of this species measure (8.0-) 8.7 - 11.5 (-12.9) × (6.3-) 6.6 - 8.0 (-8.5) µm and are broadly ellipsoid to ellipsoid and inamyloid.  Data on basidial clamp connections is not yet available.
    discussion RET has only seen this specimen fresh three times in over 30 years of collecting Amanita. To date it has been found only in New Jersey's Washington Crossing State Park arboretum area under very old oaks and in Connecticut (with no available ecological information).—R. E. Tulloss
    brief editors RET

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