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[ Section Validae page. ] [ Amanita Studies home. ] [ Keys & Checklist/Picturebooks ] Amanita neoneglecta Tulloss nom. prov."Murrill's Neglected Amanita" =Amanita neglecta Murrill nom. illeg. non Boedijn
Technical description (t.b.d.) BRIEF DESCRIPTION: The cap of A. neoneglecta is 32 - 50 mm wide, convex to plano-convex, white, with a slightly incurved, nonstriate and nonappendiculate margin. Volval remnants may be present as pyramidal warts or patches or as a slight flocculence covering most of the cap. The gills are adnate to narrowly adnexed or barely free, crowded, and white The stem is 40 - 60 × 4 - 15 mm, white, narrowing slightly upward, and flaring at the top. The bulb is small, ovoid, and white. The ring is superior, membranous, white, and skirt-like; it is often persistent, but may become ragged. Volval remnants are sometimes present as a friable white limb on the top of the bulb, but are often absent. The flesh is solid and white. According to Jenkins (1979) study of Murrill's type, the spores measure 8.6 - 10.2 × 3.9 - 5.5 µm and are amyloid and elongate to cylindric. Presence of clamps not reported, but probably absent. Amanita neoneglecta was originally described from hardwood-pine forest in Florida. Although Bas (1969)
did not treat the present species as belonging in section Lepidella,
it bears certain resemblance to the species of subsection Limbatulae Bas.
The characteristics of the volva in the present species are not fully known. If the formation of a limb on the bulb is due to a distinct but
thin submembranous outer layer, then this species probably would be
placed in subsection Limbatulae. Bas proposed three stirpes within his
subsection Limbatulae. In stirps Preissii,
no known North American taxa have a spore shape similar to that reported for A. neoneglecta.
In stirps Roanokensis,
all taxa have spores markedly narrower than does the present species.
In stirps Limbatula, there are two taxa that have a persistent ring on the stem:
A. parva (Murrill) Murrill and A.
praelongispora (Murrill) Murrill. If the present species were to be one of these, it would
have clamps at the bases of some basidia. The fact that clamps could
not be found at bases of basidia due to poor preservation of the type
(Jenkins 1979) limits us from speculating further about classification
in section Lepidella. If the volva lacks a submembranous layer
on the outer surface and clamps are lacking from the fruiting bodies
and the subhymenium is cellular, the present species is properly
placed in section Validae. RET would be very grateful for any
dried material from Florida or the Gulf Coast that might represent A. neoneglecta. [ Section Validae page. ] [ Amanita Studies home. ] [ Keys & Checklist/Picturebooks ] Last changed 11 October 2009. |