Amanita liquii - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella
[print] [map]
name Amanita liquii
name status nomen acceptum
author Zhu L. Yang, M. Weiss & Oberw.
english name "Dark-Faced Ringless Amanita"
images
  • Amanita lignitincta, Yunnan Prov., China.Amanita lignitincta, Yunnan Prov., China.

    1. Amanita lignitincta, Yunnan Prov., China.

  • cap

    The fruiting bodies of A. liquii are large. Its cap is 100 - 140 mm wide, at first nearly hemispherical, then convex to plano-convex; its center is often slightly umbonate. It is sepia to blackish, becoming blackish brown to dark brown towards the margin; and it lacks any yellow tint at all stages of development. Its margin is tuberculate-striate (extending 15% to 25% of the cap radius), and non-appendiculate. The volval remnants on the cap are dark grey to sepia, sometimes grey, felty to irregularly formed to verrucose, 2 - 10 mm wide and 1 - 3 mm high. The context is white.

    gills

    The gills of this species are free, crowded, white to cream-colored when young, greyish when mature, with blackish to dark brown free edges; the short gills are truncate to subtruncate.

    stem

    The exannulate stem of A. liquii is 130 - 170 × 15 - 30 mm, subcylindric or slightly tapering upward, whitish to brownish, and densely covered with dark grey to blackish squamules often in belts; its context white but at very base often greyish, sometimes brownish to light rusty brown, and stuffed to hollow. The stipe has no basal bulb. Volval remnants on the stipe are verrucose to subconical to granular, grey to dark grey to brownish in parts most distant from the stem, becoming paler towards bases of the remnants; the remnants are arranged in incomplete belts at the stipe base.

    odor/taste

    The odor is indistinct.

    spores

    Spores measure (11.0-) 11.5 - 15.0 (-24.0) × (9.5-) 11.0 - 14.5 (-20.0) µm and are globose to subglobose, and inamyloid. Clamps are not present on the bases of basidia.

    discussion

    Amanita liquii was originally described from Yunnan Province, China. It is common in the subalpine to alpine regions of southwestern China.—Zhu L. Yang

    For a list of probably related taxa, see the page for A. ceciliae (Berk. & Broome) Bas.

    brief editors RET

    [top]