Observation 170626: Amanita murrilliana Singer
When: 2014-07-19
No herbarium specimen

Proposed Names

28% (1)
Recognized by sight: Growing in sandy soil in a washout by a creek under hardwoods, mostly beech.
ret
61% (2)
Eye3 Eyes3
Recognized by sight: I’m going by cap coloring mostly. http://www.amanitaceae.org?Amanita+murrilliana

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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You’re welcome, Eric.
By: R. E. Tulloss (ret)
2014-07-20 19:12:47 SAST (+0200)

R

Thanks Rod,
By: Eric Smith (esmith)
2014-07-20 16:47:03 SAST (+0200)

for the heads-up on the stem attachment. I’ll remember to make a cross section next time.

We know that murrilliana ranges from Florida to Quebec and Michigan.
By: R. E. Tulloss (ret)
2014-07-20 06:42:50 SAST (+0200)

So it is plausible that you have it in your area.

Nice set of specimens. Nice shots. Santiago Sanchez has extracted a number of genes from collections of murrilliana. If you make a longitudinal section, you may see that the stem is not only connected to the volva at the very base, but the sides of the stem base are also connected to the volval sac. My impression of this last trait is based on both fresh and dried material, but I still would like to see more examples of this connection (which is unusual in the Caesareae).

Very best,

Rod

Created: 2014-07-20 04:54:30 SAST (+0200)
Last modified: 2014-07-20 16:41:07 SAST (+0200)
Viewed: 45 times, last viewed: 2016-10-27 09:02:50 SAST (+0200)
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