Observation 342757: Hydnum subgenus Hydnum

When: 2018-11-04

Collection location: Wells Mills County Park, Ocean Co., New Jersey, USA [Click for map]

Who: I. G. Safonov (IGSafonov)

No specimen available

A personal collection of Ed Zeme at the NJMA foray. Ed got addicted to eating hedgehogs following his first culinary experience with this species last year (obs 295485). :-)
Growing in the typical Pine Barrens sandy, acidic soil in pine-oak woods. The largest cap was 4.5-5" wide. I took a sample, but it was inadvertently tossed away in the post-ID clean up. :-( Without spore measurements it’s difficult to unambiguously arrive at the subgeneric/sectional/subsectional ID in the Niskanen et al. (2018) paper, but based on the gross morphology and hefty size it could be neorepandum. On the other hand, given the unique habitat settings it could be a new species. I should look into sequencing 295485.


Natural scattered light, no flash
Natural scattered light, no flash
Natural scattered light, no flash
Natural scattered light, no flash; the caps are waterlogged

Proposed Names

28% (1)
Used references: Niskanen et al. 2018: “Paler basidiomata of H. subolympicum
are very similar to the ones of co-occuring H.
neorepandum, and an ITS sequence is needed for
unambiguous identification.”
57% (1)
Used references: See comment below

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

= Observer’s choice
= Current consensus


Add Comment
I think you’re right Igor
By: Terri Clements/Donna Fulton (pinonbistro)
2018-11-05 13:41:51 MST (-0700)

Hydnum subgenus Hydnum is probably a better name than Hydnum repandum group since they are in different sections though they have similar macro morphologies.

Re subolympicum
By: I. G. Safonov (IGSafonov)
2018-11-05 13:26:00 MST (-0700)

Good point, Terri. In retrospect, should have read the comments section you quoted. I did consider subolympicum, but thought it wasn’t large enough. :-) Since either taxon is a possibility that cannot be resolved at this time, and both species belong in subgenus Hydnum, I will propose that name as the best current ID for now. I will ask Ed if he remembers whether this collection and 295485 came from the same spot, and, if so, sequencing the latter should hopefully give us an unambiguous answer.

Created: 2018-11-04 19:59:48 MST (-0700)
Last modified: 2018-11-05 13:41:52 MST (-0700)
Viewed: 38 times, last viewed: 2019-08-18 23:21:00 MDT (-0600)
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