Observation 176986: Amanita suballiacea (Murrill) Murrill
When: 2014-09-04

Notes: Spores:

[18,1,1] 7.7 – 11.0 × 6.8 – 8.5
Q = 1.03 – 1.36

This specimen has a clear cream color to the center of the cap, fading towards the margin, but much of the cap has a hint of cream. This is not something I have seen with any other A. elliptosperma specimen from our area. Faintly lined margin about 5-6 mm in.

Stem has clear brownish staining where handled.

Proposed Names

54% (3)
Eye3
Recognized by sight
28% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Yes. KOH was yellow on the cap.
By: Stephen Russell (Mycota)
2014-09-05 10:50:08 PDT (-0700)
After some thought…
By: R. E. Tulloss (ret)
2014-09-05 09:52:19 PDT (-0700)

I should have mentioned that suballiacea ranges from Texas to Michigan in the west (so far as is presently known) and Florida to Connecticut in the east.

Very best,

Rod

That color looks like yellow to me.
By: R. E. Tulloss (ret)
2014-09-05 09:50:08 PDT (-0700)

Do you concur that you got a positive KOH response on the tan cap?

Very best,

Rod

Final picture is KOH on the cap surface
By: Stephen Russell (Mycota)
2014-09-04 20:22:07 PDT (-0700)

Tan color to the cap seems to come out more as the specimen is being dried.

Final picture is KOH on the cap surface
By: Stephen Russell (Mycota)
2014-09-04 20:22:06 PDT (-0700)

Tan color to the cap seems to come out more as the specimen is being dried.

And this species is being dried.
By: Stephen Russell (Mycota)
2014-09-04 20:07:20 PDT (-0700)

I will have a package coming your way at some point with this as well as several other interesting species.

I would say the average spore
By: Stephen Russell (Mycota)
2014-09-04 20:06:06 PDT (-0700)

was more towards subglobose than ellipsoid. There were clearly ellipsoid spores in the mix.

Margin slightly striate.

Thanks for the suggestion. Closer than anything else I have seen.

The Q values of the spores suggest the average spore is broadly ellipsoid.
By: R. E. Tulloss (ret)
2014-09-04 19:40:50 PDT (-0700)

I think A. suballiacea is a possibility. Since it has recently been found in Michigan, you might have it in Indiana.

If it is convenient for you, I’d like to take a look at your material.

Very best,

Rod

Created: 2014-09-04 17:28:08 PDT (-0700)
Last modified: 2014-09-05 11:06:59 PDT (-0700)
Viewed: 94 times, last viewed: 2016-08-21 17:20:48 PDT (-0700)
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