Amanita virginea - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella
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name Amanita virginea
name status nomen acceptum
author Massee
english name "Virgin Lepidella"
images
  • Amanita virginea - drawing based on Boedijn's illustration of A. sumatrensisAmanita virginea - drawing based on Boedijn's illustration of A. sumatrensis

    1. Amanita virginea, drawing based on Boedijn's illustration of A. sumatrensis.

    • cap

    The cap of A. virginea is 100 - 155 mm wide, convex, then plane or slightly concave, dry, white, smooth, glabrous, with a appendiculate margin. The cap is covered with a thin, soft, mealy, white layer, and set with hard, conical, white, separable warts.

    gills

    The gills are free, rather crowded, broad, and white.

    stem

    The stem is 60 - 100 × 20 - 50 mm, more or less annulate, white, mealy, with small, transverse scales up to the apex. The volva is present as more less conical warts.

    spores

    The spores measure 7.0 - 9.0 × 6.0 -7.5 µm and are amyloid and broadly ellipsoid. Clamps are numerous at bases of basidia.

    discussion

    Amanita virginea was originally described from Singapore. Amanita sumatrensis (a synonym) was originally described from Indonesia (Java and Sumatra).

    Bas (1969) placed A. virginea in his stirps Virginea as its sole member. He states that he isolated the present species from his stirps Chlorinosma (see A. chlorinosma (Peck) Lloyd) because of the much more coherent volva of A. virginea. The volva is coherent despite the fact that the tissue is almost entirely composed of inflated cells. For some reason these cells stick together in the present species.
    —R. E. Tulloss

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