Observation 151112: Amanita sect. Vaginatae sensu Zhu L. Yang
When: 2013-11-03

Notes: These were collected by the Burghardts in the Speedwell section of FPP (a more exact location with ~GPS coordinates is a possibility).

> The beige caps look shiny and glutinous, and are indeed feel a bit sticky when touched.
> The volval material on the disc is grayish.
> The striations are 2-7 mm long.
> The short gills are very plentiful, variable length and squarely cut off.
> The stipes are hollow (not shown).
> The stipes have a yellow tinge to them — not sure if they were like prior to collection or changed color afterwards.
> None of the fruiting bodies had a saccate volva — it’s possible it was very friable and got lost during the extraction.
> There is a noticeable smell of raw potatoes emanating from these mushrooms.

Dimensions of the largest fruitbody:
The cap is oval-shaped, 7.8 × 6.8 cm; the specimen is 10.5 cm tall; the stipe is oval in cross-section, 1.7 × 1.2 cm.

The material is saved for RET.

Proposed Names

56% (1)
Eye3 Eyes3
Recognized by sight: Totally elongating stipe, striate cap margins, no annulus
28% (1)
Recognized by sight: See comments.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Looking forward to these, Igor.
By: R. E. Tulloss (ret)
2013-11-05 23:26:35 BRST (-0200)


intriguing find!
By: Debbie Viess (amanitarita)
2013-11-04 13:54:55 BRST (-0200)
I’m wondering if…
By: Dave W (Dave W)
2013-11-04 12:37:53 BRST (-0200)

these may be examples A. crenulata, or something else from section Amanita. Sticky caps, narrowly adnate gills, short-striate caps, and color of caps and UV deposits support this idea. Also, the ring on crenulata is fleeting. In the bottom photo it looks like the large mushroom may have a bit of material clinging to the stipe. Lack of basal bulb supports the Vaginatae proposal.

Created: 2013-11-04 03:48:45 BRST (-0200)
Last modified: 2013-11-05 22:49:58 BRST (-0200)
Viewed: 35 times, last viewed: 2014-05-14 19:47:30 BRT (-0300)
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