When: 2019-06-06
Collection location: De Berry, Texas, USA [Click for map]
Notes:
Growing in a small park with mostly pine.
Cap 8.0 cm across and stipe 17.5 cm long.
Stem partially hollow.
Spores ~ 10.0-14.0 X 9.3-14.0.microns, globose to subglobose.
This one looks similar to https://mushroomobserver.org/280699
which I found in the same park a couple of years ago.
With the small umbo and also some large spores, it seems to suggest A. penetratix or something close.
Images
| User’s votes are weighted by their contribution to the site (log10 contribution). In addition, the user who created the observation gets an extra vote. | |||||||||
| Vote | Score | Weight | Users | ||||||
|---|---|---|---|---|---|---|---|---|---|
| I’d Call It That | 3.0 | 0.00 | 0 | ||||||
| Promising | 2.0 | 0.00 | 0 | ||||||
| Could Be | 1.0 | 6.15 | 1 | (Ronpast) | |||||
| Doubtful | -1.0 | 0.00 | 0 | ||||||
| Not Likely | -2.0 | 0.00 | 0 | ||||||
| As If! | -3.0 | 0.00 | 0 | ||||||
| Overall Score sum(score * weight) / (total weight + 1) |
0.86 | 28.67% | |||||||
| User’s votes are weighted by their contribution to the site (log10 contribution). In addition, the user who created the observation gets an extra vote. | |||||||||
| Vote | Score | Weight | Users | ||||||
|---|---|---|---|---|---|---|---|---|---|
| I’d Call It That | 3.0 | 4.49 | 1 | ||||||
| Promising | 2.0 | 0.00 | 0 | ||||||
| Could Be | 1.0 | 0.00 | 0 | ||||||
| Doubtful | -1.0 | 0.00 | 0 | ||||||
| Not Likely | -2.0 | 0.00 | 0 | ||||||
| As If! | -3.0 | 0.00 | 0 | ||||||
| Overall Score sum(score * weight) / (total weight + 1) |
2.45 | 81.79% | |||||||
Comments
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However, it’s in the penetratrix group because it has the typical preface to the nrLSU gene (“TCTGACC…” etc.).
The stark white of the cap is something I haven’t seen in penetratrix which always seems to have fine gray or brown radial lines on the cap although they may be faint or irregularly disposed.
This is something not represented by DNA in GenBank or in Roosevelt. Another characteristic of this particular collection is that we were able to derive an nrITS sequence; however, we got only a scrap of the nrLSU gene.
I hope we see another one of these critters in the future. NICE FIND.
Happy Holidays and a good 2020!
Very best,
Rod
We expect the material to be sampled for DNA sequencing within 48 hours.
Very best,
Rod
There may be another example from 2 years earlier and from the same location https://mushroomobserver.org/280699
Not sure if it is in your queue.