Observation 64919: Helvella palustris Peck
When: 2011-03-19
Who: zaca
No herbarium specimen

Proposed Names

20% (2)
Recognized by sight
56% (1)
Recognized by sight

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
OK! Thanks again, Darv.
By: zaca
2011-03-31 21:16:10 CEST (+0200)
By: Darvin DeShazer (darv)
2011-03-31 20:52:24 CEST (+0200)

They lacked a lacunose stipe and the species is named for that character. They have a ribbed stipe (as do many Helvellas), but lack the holes into the inner chambers that Helvella lacunosa is suppose to have.

Thanks, Darv.
By: zaca
2011-03-31 20:12:48 CEST (+0200)

I never heard of either H. palustris or H. philonotis. What led you to these species: was it the form of the cap, the consistency of the cap (smoother than in H. lacunosa) or anything else?

Immature spores
By: Darvin DeShazer (darv)
2011-03-31 02:27:46 CEST (+0200)

Your spores lack oil drops and appear to be immature. Maybe they will get bigger.
Abbott & Currah list a European synonym for H. palustris as H. philonotis.

By: zaca
2011-03-31 01:37:27 CEST (+0200)

After the suggestion of Helvella palustris by Darv, I decided to observe the spores under the microscope. I have already uploaded some photos. The dimensions obtained:
Ascus: 200- 240 × 12-15 µm,
Spores: 12-14.5 × 8.6 – 10.4 µm,
are much lower than I expected also much lower that the dimensions of the spores of either H. lacunosa or H. palustris, presented for instance in “mushroom expert”.
Then, what can it be?

Created: 2011-03-29 21:16:00 CEST (+0200)
Last modified: 2011-03-30 07:45:41 CEST (+0200)
Viewed: 135 times, last viewed: 2016-10-24 09:19:48 CEST (+0200)
Show Log