Amanita sinapivolva - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella
[print] [map]
name Amanita sinapivolva
name status nomen provisorum
author Tulloss, S. D. Russell, & Safonov
images

  • 1. Amanita sp-N50, Salmon River St. For., Middlesex Co., Connecticut, U.S.A.


  • 2. Amanita sp-N50, beginning to dry, Salmon River St. For., Middlesex Co., Connecticut, U.S.A.

    • intro This unusual mushroom struck RET at first as a specimen of the U.S. Gulf Coast species, A. levistriata; however, the spores and DNA are incompatible with that species.
    cap The cap of Amanita sinapivolva (formerly A. sp-N50) is about 38 mm wide, yellow, and hemispheric to convex.  Its flesh is whitish and unchanging, and its margin is briefly striate (0.05 - 0.1R) and not appendiculate.  The powdery volva is olivaceous to brown small and remains on the cap in small warts and irregular patches.
    gills The gills are white or whitish.
    stem The stipe is 31 × 4.5 mm, whitish above and olivaceous yellow to olivaceous below.  The stipe's bulb is large for a small mushroom and turnip-shaped.  The rather dense layer of volva on the lower stem and upper bulb is colored as it is on the cap.
    odor/taste No odor has been recorded for this mushroom.
    spores The spores measure 11.2 - 12.6 × 6.3 - 7.7 μm and are elongate and inamyloid.  Status of clamps on basidia is not established.
    discussion —R. E. Tulloss
    brief editors RET

    [top]