When: 2017-09-12

Collection location: Creve Coeur Park, Maryland Heights, Missouri, USA [Click for map]

Who: Judi T. (AvidAmateur)

No specimen available

We are officially in a moderate drought here so when I found a pair of shriveled specimens fruiting from a very rotted log, they were difficult to ID and promised very little hope of getting any spores from their tightly closed caps. I thought they might be Mycenas, but in order to have any hope of getting to species I decided to see if they would rehydrate. After only 20 minutes in water, they emerged fresh as daisies and even produced a white spore print overnight! Measurements after rehydration: largest cap: 2 cm., lined margin, darker toward center with a prominent bump. Stipe: 3.5 cm., darker toward base which has white mycelium.


Copyright © 2017 Judi Thomas
Copyright © 2017 Judi Thomas
As found
Copyright © 2017 Judi Thomas
Rehydrated after 20 minutes in water.
Copyright © 2017 Judi Thomas
Copyright © 2017 Judi Thomas
Copyright © 2017 Judi Thomas
In situ

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So much yet to be discovered about mushrooms.
By: Judi T. (AvidAmateur)
2017-09-21 10:07:25 AST (-0400)
I am wondering about other genera as well.
Nice observation
By: Sava Krstic (sava)
2017-09-21 01:12:58 AST (-0400)

Thanks, Judy. It would be interesting to repeat the experiment. Mycena are not known to revive; Smith mentions M. corticola (=meliigena) as an exception.

We don’t have M. inclinata on the West Coast (at best, it’s rare), but I’ll try its relatives, M. maculata and M. galerriculata.

I’ve learned so much on MO.
By: Judi T. (AvidAmateur)
2017-09-19 21:22:37 AST (-0400)

Jason taught me that lichen go into “suspended animation/dormancy” during unfavorable conditions and some users have mentioned rehydrating mushrooms, so I decided to give it a try with these specimens. They responded way beyond my expectations:)

By: Danny Newman (myxomop)
2017-09-19 12:05:33 AST (-0400)
… and no one was more surprised at the transformation than
By: Judi T. (AvidAmateur)
2017-09-17 18:43:08 AST (-0400)

I was. I had hoped to open the cap just enough to get a shot of the gills.

Thanks Judi
By: Jimmie Veitch (jimmiev)
2017-09-17 18:30:12 AST (-0400)

Very detailed response, I trust you. Let my original skepticism show just how unbelievable this transformation is!

Jimmie, Image # 1311, just added, shows the reason I rehydrated these
By: Judi T. (AvidAmateur)
2017-09-17 18:18:38 AST (-0400)

specimens to begin with. The caps were so shriveled that I could not get a good picture of the gills/gill attachment.

Thanks for your comments Jimmie and Martin.
By: Judi T. (AvidAmateur)
2017-09-17 18:13:18 AST (-0400)

Martin: I’m going to try this more often myself. I’m not sure if other genera respond so dramatically, but what fun it will be to experiment:) The most amazing part of this experiment for me was getting spores from a reconstituted specimen. I guess that speaks to one of the reasons why fungi have been on Earth since the beginning of time.

Jimmie, all scientists should have a healthy dose of skepticism and I am happy to respond to that. I will add two additional photos right after I finish this comment … just for you, since I normally would not post any photos like those to be posted which are out of focus. Image # 1312 shows the split to which you refer. That picture was taken at 5:05:42 P.M., after which I repositioned the specimens (not showing the split) and took a better shot (image # 1314 which was taken at 5:06:25 P.M. Then I picked up the specimens and positioned them between my fingers for a shot of the caps which includes the split cap. That photo was taken at 5:06:48 P.M. After all photos were taken, the collage was created using shots of only the caps. In image # 1313, taken at 5:06:05 P.M., the cap split on the taller specimen is positioned behind the shorter specimen.

If you have additional questions/concerns/doubts, I’ll be glad to try and answer them.

Judi T. this is awesome!
By: Martin Livezey (MLivezey)
2017-09-17 17:26:19 AST (-0400)

And the spore print is a bonus! I am going to try this sometime!

By: Jimmie Veitch (jimmiev)
2017-09-17 16:58:59 AST (-0400)

but I can’t help but be skeptical here.. in photos 3 & 4, where’s the slit in the cap that can be seen in other photos?

Created: 2017-09-17 14:54:43 AST (-0400)
Last modified: 2017-09-17 18:16:29 AST (-0400)
Viewed: 137 times, last viewed: 2019-05-27 19:47:51 AST (-0400)
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