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When: 2017-08-06

Collection location: Franklin Parker Preserve, Woodland Twp., New Jersey, USA [Click for map]

Who: I. G. Safonov (IGSafonov)

No specimen available

This bland-looking mushroom had a pleasant floral-minty odor that reminded me of Amanita morrisii and Amanita submaculata.


Proposed Names

29% (1)
Recognized by sight
22% (4)
Recognized by sight: gills serrated, stipe compressed, pileus with radial fibrils
57% (5)
Recognized by sight: Unusual habitat is enough to consider alternatives to rodmanii.

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= Observer’s choice
= Current consensus


Add Comment
Follow up
By: I. G. Safonov (IGSafonov)
2017-08-21 14:46:29 CDT (-0400)

I looked for another example of this mushroom again late last week, but alas it wasn’t there. Better luck next time, no doubt!

By: I. G. Safonov (IGSafonov)
2017-08-18 12:16:08 CDT (-0400)

Thank you for the analysis/summary and the link. I have the Hughes et al. paper saved to my hard drive for future reference/reading.
Here is another piece of info pertaining to 286856. I found it growing on the edge of a trail on the ground (in soil), not on wood, just like 169679. If there was buried wood, it must have been so soft that I didn’t feel cutting through it with my knife. I’ve seen rodmanii fruit on ground, too, suggesting buried deadwood (e.g., roots) as the species is known to be exclusively lignicolous.

I just got a word back from the Burghardts — unfortunately, 286856 was not saved. I will revisit FPP this weekend and look for it again as I happen to remember the collection site. Certainly worth preserving a specimen and sequencing ITS.

By: I. G. Safonov (IGSafonov)
2017-08-18 10:39:35 CDT (-0400)

I didn’t take your ID as an insult, but I was rather surprised at the confidence level of your proposal in light of the facts I mentioned. I’ve been guilty, too, of rushing to conclusions without bothering to read notes and paying attention to the geography and/or habitat.
There was no intent to ridicule you for your proposal here. I am sorry you perceived it this way. In all honesty, I didn’t recall the older obsie till I was about to hit the create button on my comment (3 years is a long time to remember some obscure collection). My “could be” vote for the rodmanii proposal in 169679 probably reflects my hesitation after measuring the spores and exchanging ideas with Dave.
The specimen in this obsie (286856) wound up in the hands of my colleagues from NJMA (we were foraying together), so it might have been preserved. I will inquire about its fate and post here.

Any mushroom…
By: Dave W (Dave W)
2017-08-18 08:09:57 CDT (-0400)

when seen where it is completely unexpected suddenly becomes difficult to recognize. The gestalt of any entity includes context.

Kuo says that DNA suggests (at least) four Megacollybia species in NA , and that correlating any of these species with morphology is, at very least, challenging. (Maybe we should call the NA ones “Megacollybia rodmanii group”?)

Come on, folks
By: I. G. Safonov (IGSafonov)
2017-08-18 00:23:23 CDT (-0400)

Don’t you think I’ve would have proposed this name myself?! M. rodmanii is not a difficult mushroom to ID.
Read the details of this obsie! Pines, acidic sandy soil, late summer, floral odor of the fb. Hardly the place and time for rodmanii. Yeah, it could be Megacollybia, but not that one.
I suddenly recall another obsie of mine from 3 years ago, also made in the Pine Barrens, with no hardwoods around, obs 169679. I didn’t think about proposing rodmanii back then either! I gather it’s the same mushroom seen here.