Observation 29891: Amanita sponsus Tulloss et al. nom. prov.
When: 2009-12-06
Herbarium specimen reported


[admin – Sat Aug 14 02:03:11 +0000 2010]: Changed location name from ‘MSSF Fungus Fair 2009’ to ‘MSSF Fungus Fair, San Francisco, California, USA


non-appendiculate margin, apical membranous partial veil, small size, smooth, spindle-shaped bulb.
gill smash mount. mature spores (at least, the largest I could find) in Meltzers, 1000×. prominant hilar appendage, amyloid.
immature spores 1000×.

Proposed Names

29% (1)
Recognized by sight: no appendiculate margin to cap; membranous partial veil. slightly reddening when bruised. this is the same mushroom identified as Amanita cokeri at the MSSF Fair.
29% (1)
Recognized by sight: same amanita as DNA determined section Validae with an affinity to Amanita brunnescens.
57% (1)
Eye3 Eyes3
Recognized by sight: Validae that browns not reddens
Based on microscopic features: ellipsoid spores

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Very interesting…and with ellipsoid spores apparently.
By: R. E. Tulloss (ret)
2014-05-12 05:29:47 IST (+0530)


Created: 2009-12-09 06:12:15 IST (+0530)
Last modified: 2016-07-28 02:02:51 IST (+0530)
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