Observation 48781: Amanita amerimuscaria Tulloss & Geml nom. prov.

When: 2008-10-04

Collection location: Westmoreland Co., Pennsylvania, USA [Click for map]

Who: Hamilton (ham)

No specimen available


[admin – Sat Aug 14 02:07:45 +0000 2010]: Changed location name from ‘Westmoreland County, PA’ to ‘Westmoreland Co., Pennsylvania, USA


Copyright © 2010 Hamilton

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By: Erlon (Herbert Baker)
2010-09-27 09:11:07 MDT (-0600)

The reason is, the red form of A. amerimuscaria hasn’t been shown to grow in the east.
Also, persicina is more variable and its population is greater than what we have been led to believe.

By: R. E. Tulloss (ret)
2010-07-20 09:41:25 MDT (-0600)

I must admit that I am curious as to why so many collections from Pennsylvania and nearby states appear to some MO participants to be A. muscaria var. persicina Dav. T. Jenkins.

One way that we can resolve the issue of whether there has been an immense invasion of persicina in the last few years or not is to have material of muscarioid taxa collected from many sites. The collection sites should be spacially separated by at least a few kilometers from each other. Each collection should be labeled with the site (lat./long. would be great), county, state, date, collector’s name, collector’s personal collection no. or MO observation no. A photo of every collection should be posted on MO.

I would be great if someone would create a list to hold all and only those observations involved in the “muscarioid exploration” of the target area. To simplify matters and reduce costs, no material from west of the Great Plains and south of Virginia’s linear southern border should be sent. Only material from North America is of interest to this project.

I will volunteer to collect all the WELL-DRIED material. It will be cataloged and saved in my herbarium. The latter will be transferred to the New York Botanical Garden when I become unable to work on its contents.

Send material for the above-proposed project to

R. E. Tulloss
Herbarium Rooseveltensis Amanitarum
P.O. Box 57
Roosevelt, NJ 08555-0057

Let’s say we aim for 50 collections during the remainder of 2010. We are fortunate that through the work of Dr. J. Geml et al. we have sequences from multiple genetic loci from collections of red, yellow and white variants of A. amerimuscaria as well as from A. muscaria var. persicina. I will send samples from all the newly made collections for DNA sequencing if I can find a lab to do that. If I have to pay, I’ll ask for donations on MO.

If every specimen sent has its picture on MO, then we can reference the collections by their MO observation numbers.

Citizen science at work!

Very best,


Created: 2010-07-19 19:50:22 MDT (-0600)
Last modified: 2011-02-11 17:33:27 MST (-0700)
Viewed: 114 times, last viewed: 2017-06-07 19:56:29 MDT (-0600)
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