Observation 11758: Amanita amerirubescens Tulloss nom. prov.
When: 2008-09-28
No herbarium specimen

Notes: Found in the grass under a live oak. Spore print very, very pale yellow—almost white. Gills are very nearly attached.

Called A. rubescens in my guides.

Proposed Names

54% (1)
Eye3 Eyes3
Recognized by sight
Used references: A Field Guide to Southern Mushrooms – Nancy Smith Weber and Alexander H Smith
Audubon Society Field Guide to North American Mushrooms – Gary H. Lincoff
Mushrooms of North America – Orson K. Miller, Jr.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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great depiction of that two-toned annulus!
By: Debbie Viess (amanitarita)
2008-10-06 07:47:26 PDT (-0700)
Note the yellow underside of the annulus…
By: R. E. Tulloss (ret)
2008-10-06 05:58:03 PDT (-0700)

Note the yellow underside of the annulus. This is an occasional character of A. amerirubescens. It also occurs in the related A. rubecens var. alba Coker, which probably needs a new name as well.

In both cases, the yellow matter comprises remnants of the wedge of universal veil that originally lay between the bottom of the annulus and the stem (stipe) of this mushroom. If you come along early enough in the mushroom’s development, you will see that the volva on the cap is also yellow. This suggests a connection between the pair of mushrooms mentioned above to another red-brown bruising amanita — A. flavorubens.

Rod

Created: 2008-10-01 14:01:11 PDT (-0700)
Last modified: 2008-10-01 14:01:11 PDT (-0700)
Viewed: 28 times, last viewed: 2016-11-28 17:24:46 PST (-0800)