Observation 104052: Amanita sect. Validae (Fr.) Singer
When: 2012-08-06
No herbarium specimen

Proposed Names

27% (1)
Eye3
Recognized by sight
ret
81% (1)
Eyes3
Recognized by sight

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Some material of A. amerirubescens
By: R. E. Tulloss (ret)
2012-08-07 06:56:06 CDT (-0500)

has a yellow volva at first and, sometimes, even a yellow underside to the partial veil. There are also speciee of Murrill, known only from Florida that I think I have identified in more recent material that have persistently yellow warts and apparently stain red at least at the stipe base. These latter taxa have fruiting bodies suggesting members of the flavoconia-flaviceps “group”.

From the photographs alone, I am not sure whether this mushroom fits into an existing species or “group” or not. This is a hard problem.

I am taking the opportunity that you, Adam, have provided by this posting to advertise for material from the flavoconia-like “group” of amanitas.

Currently a molecular approach to sorting out some of the flavoconia-flaviceps “group” has been initiated in Dr. Zhu-liang Yang’s lab. Cristina and I are supporting this work with North American material. We will share yellow-veiled material suggesting flavoconia with Dr. Yang and his students. If you obtain dried material of the present taxon with good photographs, we will forward samples to Kunming. If you can supply written field notes on such a collection, it may end up in a species description. Without such notes, if a collection represents a new species, it will not be able to be officially described until such data is available for an additional collection or collections.

The workshop booklet prepared by Cristina and myself has a lot of information about how to prepare annotations from fresh material and provides a form that will help jog a note taker’s memory as to what needs to be written down. Anyone not having a copy of this booklet (presently available in American English) can obtain the latest version from us by sending email with their return email address. The document is in the form of a PDF and can be read by recent versions of Adobe Acrobat or Adobe Acrobat Reader. The latter can be downloaded without charge.

You can contact us from here:

http://www.amanitaceae.org?contact+us

Very best,

Rod

Created: 2012-08-06 13:48:56 CDT (-0500)
Last modified: 2012-08-07 07:02:25 CDT (-0500)
Viewed: 31 times, last viewed: 2016-10-27 23:05:52 CDT (-0500)
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