Notes:
Found on beach below Coccoloba uvifera

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in the tropics, it can be challenging to keep amanitas dry.
By: Debbie Viess (amanitarita)
2018-06-18 17:09:22 CDT (-0500)

but even here in a CA Mediterranean climate, I have had well dried amanitas absorb water through the plastic bags.

the other trick is to let the mushroom cool down after removing from the drier but before bagging; otherwise, it might sweat in that bag.
don’t let it cool for too long, ‘cause air moisture, and then oops, it’s wet again.

yes, it can be tricky!

Indeed, the saproamanitas are even worse! they get to live in double drying chambers here in my house, and that does seem to work.

Kurt, with most amanitas you should not have that much trouble
By: R. E. Tulloss (ret)
2018-06-18 16:31:06 CDT (-0500)

Halve them or quarter them longitudinally befor putting them on the dryer. Dry them until the stem cannot be bent at the point at which it attaches to the cap. The hardest to maintain in dry condition are the amycorrhizal species. These can be obstinate.

Very best,

Rod

you are not alone Kurt
By: Debbie Viess (amanitarita)
2018-06-17 20:44:03 CDT (-0500)

randomly rehydrating amanitas also happens to me!

plastic bags alone are often not enough. I put mine in sealed heavy ziplocks and then in tupperware tubs with an open jar of Dri-Z-Air. I have to pour the water off those jars on a regular basis, but the amanitas stay crispy dry!

Excellent!
By: kurt miller (komille277)
2018-06-17 20:28:56 CDT (-0500)

I have a hard time with Amanita specimens, they always seem to rehydrate in the plastic bags after I’ve dehydrated them. I hope that specimen has some shelf life left in it.

The collection has been accessioned in our herbarium.
By: R. E. Tulloss (ret)
2018-06-17 10:58:11 CDT (-0500)

Thank you for sending the voucher for this observation. It arrived in good order.

Very best,

Mary and Rod Tulloss

The field drawings of fresh specimens suggest the volval sac remnants may be very…
By: R. E. Tulloss (ret)
2018-05-22 17:22:32 CDT (-0500)

…minimal…a little cup…or an irregular (and rather small) sack.

Very best,

Rod

At the base of the stipe
By: kurt miller (komille277)
2018-05-22 09:51:32 CDT (-0500)

there does seem to be a fold which you can see in the photos, but even looking at the specimen up close I wasn’t able to tell if it is remnants of a volval sac. I’ll have to go back and look at fresh specimens.

Also, the reportedly pallid cap margin is not present in your material.
By: R. E. Tulloss (ret)
2018-05-21 09:59:22 CDT (-0500)

Also “Drab Gray” is a color from Ridgway’s color book, it is a moderate, somewhat brownish gray.

Rod

The larger specimens seem to be at or above the range of stipe length reported…
By: R. E. Tulloss (ret)
2018-05-21 09:48:04 CDT (-0500)

for this species in its original description (35 – 100 mm).

Very best,

Rod

Now I have seen all the photos. Yes, this is a species of sect. Vaginatae.
By: R. E. Tulloss (ret)
2018-05-21 09:42:34 CDT (-0500)

So __arenicola_ is reasonable because of growth in sand near Coccoloba uvifera.

The stipe appears to be totally elongating.
By: R. E. Tulloss (ret)
2018-05-21 09:39:18 CDT (-0500)

At the base of the stem, is the sand cling to the surface of a volval sac? It is hard to see, but I think so. Do you see the same thing?

Very best,

Rod

Rod
By: kurt miller (komille277)
2018-05-20 10:25:46 CDT (-0500)

I added more photos of specimens collected from the same patch this morning (5/20). I do believe all of the photos here represent the same taxon, just in different stages of growth, but perhaps they are not A. arenicola. I’ll dry the ones in the photos from 5/20 and send a sample.

If you dry any material of like these,…
By: R. E. Tulloss (ret)
2018-05-19 23:31:03 CDT (-0500)

I would like to ask for a part of the collection. By the way we will be sampling your Loiza material from January, 2018 in the coming week. This will go in the sequencing queue before the end of MAY, I hope. This means we’d be looking for results in the Fall.

Very best,

Rod

I think that you have two different taxa here.
By: R. E. Tulloss (ret)
2018-05-19 23:23:54 CDT (-0500)

The small species with a striate (radially grooved) cap margin is more suggestive of arenicola. But we can’t see the base of the stem. There should be a membranou, sac-like or cup-like volva enclosing the base of the stem. I think such a thing might be there if you dug up the small speciment withe the striate cap margin.

The larger specimen will not (I suspect) have a volval sac at the base of the stem.

Very best,

Rod

That is very large for arenicola.
By: R. E. Tulloss (ret)
2018-05-19 23:20:07 CDT (-0500)

Using a human figure as a scale indicator, I would say the large basidiome is as much as four times the size of the material that I have handled.

Very best,

Rod

Created: 2018-05-19 20:00:58 CDT (-0500)
Last modified: 2018-12-03 19:12:09 CST (-0600)
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