Amanita supravolvata - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella
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name Amanita supravolvata
name status nomen acceptum
author Lanne
english name "High Sack Ringless Amanita"
images
  • Amanita supravolvata, Atlantic coastal dunes, Les Landes, France.Amanita supravolvata, Atlantic coastal dunes, Les Landes, France.

    1. Amanita supravolvata, Atlantic coastal dunes, Les Landes, France.

  • Amanita supravolvata, Peloritani Mtns., Messina, Sicily, Italy.  (RET 822-6)Amanita supravolvata, Peloritani Mtns., Messina, Sicily, Italy.  (RET 822-6)

    2. Amanita supravolvata, Peloritani Mtns., Messina, Sicily, Italy.  (RET 822-6)

  • cap The cap of Amanita supravolvata is 25 - 85 (-90) mm wide, hemispherical, then pulvinate to plano-convex, rarely bluntly umbonate, with a decurved, short striate or short sulcate margin (10±% of the radius).  The cap is pale gray.  The flesh is white and pearly.  The volva is absent or present as a small to large white cottony, membranous patch over the cap center.
    gills The gills are free, rather close, whitish cream, with some flesh tones at first, up to 8 mm wide, and proportionately rather thick.  The short gills are scattered and truncate at a right angle.
    stem The stem is 90 - 185 × 6 - 17 mm, very white, very slender, narrowing upward and expanding at the apex, and exannulate.  The flesh is white, pearly, stuffed, then hollow.  The saccate volva has its highest point 35 - 67 mm from the stem base; it stands out evenly from the stem for the upper 15 - 35 mm, and abruptly becomes appressed to the stem below this part.
    odor/taste Odor and taste were not detected in this mushroom.
    spores The spores measure (8.8-) 9.8 - 13.5 (-16.5) × (6.4-) 7.3 - 10.5 (-14.0) µm and are broadly ellipsoid to ellipsoid (infrequently subglobose or elongate) and inamyloid.  Clamps are occasionally observed at bases of the basidia.
    discussion Amanita supravolvata was originally described from beaches of the Atlantic Coast of France (Dép. Gironde).  It has also been found in sandy soils in Germany and Poland.  Pines are apparently associated with A. supravolvata.

    For links to related species see Amanita mairei Foley.—R. E. Tulloss
    brief editors RET

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