Observation 152843: Gomphidius Fr.

When: 2013-11-17

Collection location: Sierra Trail, Mount Tamalpias, Marin Co., California, USA [Click for map]

Who: Ken Stavropoulos (pennybun)

No specimen available


Proposed Names

31% (3)
Recognized by sight
42% (3)
Recognized by sight
77% (2)
Recognized by sight
61% (2)
Recognized by sight
Used references: Arora, Mushrooms Demystified. Annulus present, small size (for a Gomphidius), yellow at base of stipe.

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= Observer’s choice
= Current consensus


Add Comment
Interesting article…
By: Nathan Wilson (nathan)
2013-11-18 21:21:54 CST (+0800)

Not sure if you can get to it without an MSA membership, http://www.mycologia.org/content/94/6/1044.full discusses the phylogeny of Gomphidius species based on molecular data. It states “Sequences were obtained for 17 collections of Gomphidiaceae, including all species of Gomphidius except for G. oregonensis Pk., G. largus O.K. Mill., and G. pseudomaculatus O.K. Mill., for which we were unable to obtain recent collections.”, but it does include G. subroseus and G. glutinosus which form a clade along with G. smithii.

Not sure of the species…
By: Nathan Wilson (nathan)
2013-11-18 21:09:50 CST (+0800)

Obviously this one is quite dry which is a bit unusual for a Gomphidius, but in this case just reflects the local weather. It doesn’t seem quite ‘rosy’ enough of G. subroseus, but it doesn’t seem quite dirty enough for the other Gomphidius species. Anyone know if there are micro characters that distinguish these species?