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[ Section Validae page. ] [ Amanita Studies home. ] [ Keys & Checklist/Picturebooks ] Amanita maculans (Murrill) Murrill"Red Spotting Amanita"
Technical description (t.b.d.) BRIEF DESCRIPTION: Based on the original description of Murrill (1941) and a type study by David T. Jenkins (1979). The cap of Amanita maculans is up to 30 - 40 (-60) mm wide, convex to broadly convex, nearly smooth, white or lemon-tinted white, sometimes tannish on the center or in spots, with a slightly incurved, nonstriate margin. Volval remnants are present as a sparse, thin, floccose-membranous crust. The flesh is thin, white, and unchanging. The gills are narrow, adnate, crowded, white, and unchanging. The stem is up to 40 - 60 × 5 - 7 mm, cylindric, powdery at the top, smooth below the ring, solid, white, becoming reddish where bruised. The bulb is up to 15 mm wide and globose. The volva is short limbate or as small floccose-membranous volval remnants on the stem. The ring is ample like "a bell-shaped skirt," slightly staining reddish sometimes. The odor is lacking. The taste mild. The spores measure 7.8 - 8.6 × (7.8) 8.6 µm and are globose to subglobose and amyloid. Clamps are absent at bases of basidia. Originally described from Florida, USA under scrub oaks, gregarious or scattered. Jenkins (1986), who has seen this species in Florida, classified it in section Phalloideae; however, at that time species such as A. brunnescens G.F. Atk. and A. bulbosa var. citrina (Schaeff.) Gillet were thought to fall within the Phalloideae. Now they are generally agreed to be assigned to section Validae. The red spotting of the stem and annulus is a very interesting character. RET would very much like to receive collections of well dried and well described material of this species. -- R. E. Tulloss [ Section Validae page. ] [ Amanita Studies home. ] [ Keys & Checklist/Picturebooks ] Last changed 21 January 2009. |