| name | Amanita obconicobasis |
| name status | nomen provisorum |
| author | Tulloss & S. D. Russell |
| english name | "Stem-in-a-Cone Ringless Amanita" |
| images |
  1. Amanita obconicobasis, Stebbins Cold Canyon Reserve, Solano Co., California, USA. (RET 666-3)  2. Amanita obconicobasis, Stebbins Cold Canyon Reserve, Solano Co., California, USA. (RET 666-3)  3. Amanita obconicobasis, Stebbins Cold Canyon Reserve, Solano Co., California, USA. (RET 666-3) |
| intro | As usual, data will appear on the technical tab of this page first. |
| discussion |
Two curious characters of this species are (1) that
there is an upsidedown cone of tissue under the
stem's base and inside the volval sack (2) that the
internal limb of the volval sac can be carried up
with volval by the cap as the mushroom expands. In the latter case, at least for awhile, the internal limb may project under the cap and cover the inner ends of the gills. (See image no. 2, above.) The reader may wish to compare this species with the genetically distinct A. sp-C25.—R. E. Tulloss |
| brief editors | RET |
