Observation 107798: Amanita spissa var. alba Coker
When: 2012-08-30
Herbarium specimen reported

Notes: Oak forests. No distinct smell. Slight Yellow-green tint to the cap.

Spore Information:

[23,1,1] (5.5) 6.0-7.0 (7.9) x (3.8) 4.0-4.9 (5.1)
Q = (1.22) 1.32 – 1.59 (1.61)
L’ = 6.5
W’ = 4.5
Q’ = 1.46

Proposed Names

28% (1)
Recognized by sight
54% (1)
Recognized by sight

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Thank You Stephen.
By: groundhog
2013-06-27 17:05:05 SAST (+0200)

This material has been accessioned into Rod’s herbarium.

I was
By: Stephen Russell (Mycota)
2012-08-31 07:45:48 SAST (+0200)

looking through lepidellas, and pulled up the spore charts for all the Lepidellas compiled on each other. I really wanted to be able to filter out those with a length over a certain size or something. Something else that would be useful is if I could select and delete them directly on the chart, or if I selected one, it would pull up a name of the species.

Something else I have wanted with your site is the ability to quickly determine where the species are from. What I would really like is the ability to filter individual pages, like the Section Phalloideae page for only North American Species. It is already a possibility by Name and Completeness of description, but region would also be VERY helpful.

But as always, there are so many mushrooms, and so little time.

Well, you hit the nail on the head.
By: R. E. Tulloss (ret)
2012-08-31 06:26:08 SAST (+0200)

Filtering by spore size is very important. I have checklists oriented by spore size that I have used for years; and they are very helpful; but are a bit dated. David (Tulloss) and I have discussed creating such lists dynamically for the website. Having a similar feature for the sporographs would be a very interesting idea. In fact, I filter sporographs manually sometimes. I think you have given us a good idea for a needed feature.

Thank you! Now… The question is how soon we can get to it.


Very best,


Thanks for the help.
By: Stephen Russell (Mycota)
2012-08-31 05:53:15 SAST (+0200)

I was about to finalize the ID on your site and found I had a question. On the sporograph maps, is there any way to filter the lists by spore size?

As with the others, this will be yours. I have about five different specimens of them from the site. Found near my normal ravenelii patch.

This is clearly not the same taxon as those…
By: R. E. Tulloss (ret)
2012-08-31 05:49:36 SAST (+0200)

proposed by European or South American authors under the same name. Coker’s combination is not valid, but it is the only available name for the white species he described. The species is poorly known because there is no extent dried specimen of the type collection.

I believe that I have found this species (many years ago) in New Jersey. At the time I’m sure I confused it with Amanita canescens, which was not yet named.

This is a very interesting collection Stephen. Your spore measurements are very close to those that David Jenkins reported from a spore print, which is all that exists from Coker’s original collection.


Created: 2012-08-31 01:22:52 SAST (+0200)
Last modified: 2012-08-31 05:45:29 SAST (+0200)
Viewed: 63 times, last viewed: 2017-06-14 06:23:13 SAST (+0200)
Show Log