Observation 221981: Helvella lacunosa group
When: 2015-11-06
No herbarium specimen

Proposed Names

-10% (2)
Recognized by sight
Used references
77% (3)
Eye3 Eyes3
Recognized by sight: Were there hardwood or softwood trees nearby?

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Thanks
By: Dennis Oliver
2015-11-08 13:49:49 MST (-0700)

Dr. E.,

Thanks for your comments and insights, nice article too.

d

microscopy is not helpful in this group
By: else
2015-11-07 21:14:37 MST (-0700)

Unfortunately, the spores and asci, paraphyses and the cells on the outside of the ‘cap’ are all very similar among species in this complex.
Molecules are the best indicator.
This specimen looks very much like the most widespread and common species, H. vespertina.

what hides under a name
By: Dennis Oliver
2015-11-07 16:28:08 MST (-0700)

Nyuyen et al. published a recent study on the Helvella lacunose group in Mycologia 105 (5):1275-1286

The Helvella lacunosa species complex in western North
America: cryptic species, misapplied names and parasites

There seems to be at least 11 taxon hiding under the nom de fungi “Helvella lacunosa.” It now seems to be the custom to call all formerly H. lacunosa, H. vespertina but without looking at microscopic features and DNA that maybe just another case of lumping under another name. I think keeping it as Helvella lacunosa group is a noble choice.

Created: 2015-11-06 18:23:23 MST (-0700)
Last modified: 2015-11-15 18:43:46 MST (-0700)
Viewed: 42 times, last viewed: 2016-07-27 15:14:29 MDT (-0600)
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