Observation 175243: Amanita sect. Validae (Fr.) Singer
When: 2014-08-23
(39.8136° -74.5489° )
Herbarium specimen reported

Notes: > A single fruiting body growing at the base of a small stump surrounded by pitch pines in the entrance area of an FPP section dubbed “The North Gate”.
> Cap diameter = ~7 cm; stipe (apex to upper bulb) = 11.5 cm long
> The bulb = ~2 × 2 cm.
> A piece of grayish universal veil was observed on the cap surface.
> About 1/3 of the total stipe length was subterranean.
> Realizing a certain degree of morphological semblance between this mushroom and that of obs 175241 & obs 174500, the bulb was carefully excavated and examined for the presence of the yellowish universal veil; none was found.

Microscopy:
Amyloid in Melzer’s;
[20/1/1]: L x W = (7.0-) 7.4-8.6 (-9.1) x (4.9-) 5.1-6.3 μm;
L’ x W’ = 8.0 × 5.5 μm;
Q = 1.37-1.50 (-1.63) — a very tight group of Q values;
Q’ = 1.44
All measured spores are ellipsoid, with exception of the longest spore (9.1 μm) that is marginally elongate.

Images

448767
448768
448769
448770
455000
Mounted in Melzer’s and viewed at x1000; 1 div = 0.465 μm
455001
Mounted in Melzer’s and viewed at x1000; 1 div = 0.465 μm

Proposed Names

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Eye3 = Observer’s choice
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Comments

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Thanks Igor,
By: groundhog
2014-10-14 09:24:39 PDT (-0700)

This material has been received and accessioned to Rod’s herbarium. We have scheduled it for DNA sequencing.
-Naomi

Spore measurements / pix posted
By: I. G. Safonov (IGSafonov)
2014-09-12 21:31:49 PDT (-0700)

Created: 2014-08-24 21:29:03 PDT (-0700)
Last modified: 2014-09-12 21:31:12 PDT (-0700)
Viewed: 27 times, last viewed: 2016-03-11 10:56:11 PST (-0800)
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