Observation 183376: Amanita sect. Vaginatae sensu Zhu L. Yang
When: 2014-10-16
Who: zaca
No herbarium specimen

Notes: Single specimen growing on a very particular habitat of very old Quercus suber trees (about 80% of the big trees), with a lot od shrubs, like Arbutus unedo and Pittosporum undulatum, that here also seem like trees. I believe that the colours where well reproduced by my camera, though the color of the central part of the cap (a mixture of very lights brown and pink?) is not so usual for an Amanita.

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Ok! Thanks, Naomi.
By: zaca
2014-11-25 12:59:15 PST (-0800)
Thanks Zaca,
By: groundhog
2014-11-25 12:48:08 PST (-0800)

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

You are welcome, Rod.
By: zaca
2014-11-05 15:06:37 PST (-0800)

Unfortunately I never saw any species of Limacella.
Kind regards,

Thank you, zaca.
By: R. E. Tulloss (ret)
2014-11-05 14:58:41 PST (-0800)

I look forward to receiving the package.

Do you every see Limacella species in your collecting areas?

Very best,


2014-11-05 – Material sent.
By: zaca
2014-11-05 13:24:20 PST (-0800)

Half of the specimen.

No news are bad news.
By: zaca
2014-10-19 10:42:41 PDT (-0700)

I was not able to find any material related to this observation. I only saw one Amanita sp. (A. pantherina I think) that I will post soon.

Sounds like a good plan.
By: R. E. Tulloss (ret)
2014-10-17 15:30:21 PDT (-0700)


Thank you.

Very best,


By: zaca
2014-10-17 14:56:56 PDT (-0700)

you can count on it. I intend to go this weekend to the same place of this observation; Maybe some others specimens exist there. Let’s wait and see.
Kind regards,

If I understand correctly, you do have material for the present obervation.
By: R. E. Tulloss (ret)
2014-10-17 14:39:37 PDT (-0700)

If you can spare all or part of it, I would like to pursue the idea of its relationship to umbrinolutea.

Very best,


Data added.
By: zaca
2014-10-17 14:30:21 PDT (-0700)

Dear Dr. Tulloss,
After reading the description of A. umbrinolutea I could understood better your comment regarding the colors of the cap my specimen in comparision with that species. Nevertheless, the spores seem to be of the same form and having similar dimensions. Can it something of he same stirp?
It is not my pratice to include specimens available in my observations.
In the case of the specimens of Amanita from this date, they were all in relatively bad condition, as the photos show, maybe caused by the rain and a kind of “local storm”. However, I have some material from any of the observations, otherwise I could not add any data. In the case of this specimen I have everything, except the volva, of which I only saw the litle piece shown in one of the photos.
Thanks for your interest,
Kind regards,

The pigments suggest that this is not umbrinolutea.
By: R. E. Tulloss (ret)
2014-10-17 08:45:54 PDT (-0700)

Amanita umbrinolutea (in photographs of fresh material that I’ve seen) show four to five colored zones that alternate in color between deep red-brown (umber) and sordid yellowish tan. The central zone (including the umbo) can be either of the two colors within a single cluster of fruiting bodies. In this case, neither of the typical colors is in involved, and the color pattern involves three color zones with the middle of these three very narrow and placed at the inner end of the marginal striations. This patterning is more common in sect. Vaginatae (in my experience) than the umbrinolutea type of patterning.

You’ve posted a good set of images for the record.

Too bad there is no herbarium specimen.

Very best,


Created: 2014-10-16 14:50:14 PDT (-0700)
Last modified: 2014-10-17 14:31:17 PDT (-0700)
Viewed: 70 times, last viewed: 2016-10-22 05:59:49 PDT (-0700)
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