When: 2014-09-26

Collection location: Cedar Creek Ecosystem Science Reserve, Bethel, Minnesota, USA [Click for map]

Who: Arielle (arietayl)

No specimen available

Growing in moss at edge of bog. Under tamarack, maple, and oak trees.


Proposed Names

27% (1)
Used references: Mushroomexpert.com
56% (1)
Recognized by sight

Please login to propose your own names and vote on existing names.

= Observer’s choice
= Current consensus


Add Comment
You’re very welcome, Arielle.
By: R. E. Tulloss (ret)
2014-09-30 20:52:56 EDT (-0400)

If you are not familiar with it, you may find the following of interest:


For example, the growing cluster of things that used to be called ceciliae are dealt with on this site under a number of provisional names or “temporary codes.” The descriptions for these species-being-discovered are linked to each other (often on the technical tab of a species page). Here are some sample species pages for ex-ceciliae critters:






Very best,


Thank you very much!
By: Arielle (arietayl)
2014-09-30 20:29:35 EDT (-0400)

You have been such a great help, thank you for all the information!

I think you were closest with your first choice….EDITED
By: R. E. Tulloss (ret)
2014-09-30 20:21:01 EDT (-0400)

The name ceciliae actually applies to a European species with a weakly structured volval sac. That mushroom has a cap that is brassy yellowish at first and become dark brown with time. The fragments of the volva that remain on the cap eventually become quite dark.

There is a European species called fulva with a orangish brown cap and a white volva sac that doesn’t break up and turn dark. The name fulva is another European name misapplied in the North America. Over the last quarter century or so, it has become more and more obvious that the mycorrhizal species to which European names were applied in the past are really endemic North American taxa. Now we are finding out that we were using one European name for multiple taxa in many cases. Just in Amanita this “many for the price of one” situation is facing us with many European names that will have to be replaced: citrina, ceciliae, fulva, rubescens, virosa, etc.

One thing about mushroomobserver is that you will find that many people are in the process of learning new names all the time. Given the situation and given the length of time it takes to really learn to separate organisms that we are used to thinking about as one species of mushroom, I think we will be in our current status [vis-a-vis familiar (but European) names] for quite a while longer.

Very best,


Another species?
By: Arielle (arietayl)
2014-09-30 17:16:27 EDT (-0400)

Using the Mushrooms of the Midwest book I came to A. ceciliae, would that be a better guess at the identification?

As far as is known, A. fulva is limited to Europe and western Asia……EDITED
By: R. E. Tulloss (ret)
2014-09-27 23:25:02 EDT (-0400)

There are several fulva-like species (without formal names) occurring in the eastern United states. I think you have photographed (very nicely) one of these species.

Very best,

Rod Tulloss