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The following material is based upon original research by R. E. Tulloss.
29 - 56 mm wide, hemispheric at first, finally planar and sometimes with central depression, red to orange-red, deepest coloration in disk and in incompletely expanded basidiomes, somewhat tacky; context yellow, thin; margin nonstriate, nonappendiculate; universal veil absent.
free, crowded, white to yellowish with yellow edge, forking?; lamellulae mostly short.
65 - 80 × 6 mm, narrowing upward, white to ivory to pale yellow; bulb small, rounded, marginate; context solid to stuffed, white; partial veil superior, yellow and membranous, flaring, or collapsed on stipe and then more orange; universal veil as a yellow powder (sometimes noticeable only as a yellow tint) on margin of bulb.
Maryland: Gregarious in grass under Quercus sp. Ohio: In leaf litter in mixed hardwood forest.
U.S.A.: MARYLAND—Wicomico Co. - Fruitland, 419 S Camden Ave., 5.vii.1991 Joseph Paydon 91-97 (RET 012-1). MISSOURI: Camden Co. - ca. Camdenton, Ha Ha Tonka St. Pk., River Cave, 24.vi.2009 Jay Justice, S. Kaye & C. Crabtree s.n. [Tulloss 6-24-09-D] (RET 441-2). OHIO—Preble Co. - Somers Twp., Swan-Beatty Rd, Pleasant Vineyard Retreat Ctr., sect. 20, 2.viii.1992 M. A. Vincent 5645 (MU; RET 120-9).
See A. H. Smith’s Amanita Ms. under "A. flavoconia var. rubroflammea" (ined.). After reviewing the FWVA material (accompanied by slides), I’m inclined to believe that this entity may fall within the normal variation of A. flavoconia var. flavoconia. Further review of the redder material of A. flavoconia is undoubtedly needed.
Amanita erythrocephala Neville, Poumarat & Aste was originally described by the authors as somewhat similar to the present taxon. In their large work of 2004, the authors of erythrocephala argued for the case that they had probably named material of the North American taxon that had been imported to Italy. The following figure provides a comparison of sporographs of the two taxa:
The following figure compares the sporographs of the present taxon with A. flavoconia var. flavoconia and var. inquinata:
—R. E. Tulloss
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