Observation 204106: Morchella eximia Boud.
When: 2013-05-17
No herbarium specimen

Notes: Many of these elongated morels were found along this creek in a burn zone. They were collected and eaten, not vouchered!

Proposed Names

62% (4)
Eye3 Eyes3
Recognized by sight: burn morel found fruiting in and alongside a creek. morpho identical to sextelala, but habitat separates.
Used references
9% (3)
Recognized by sight: Seems equally likely
16% (4)
Recognized by sight: There is not enough information here to determine the species.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
slow weekend in Oaktown, Alan?
By: Debbie Viess (amanitarita)
2015-05-11 07:31:04 PDT (-0700)

no matter. this sighting will still come up for eximia, and folks can decide for themselves from the data.

I look forward to your very own DNA evidence from burn seep morels in CA, either proving or disproving Kuo’s findings.

Until then, on to bigger and better things!

By: Debbie Viess (amanitarita)
2015-05-10 10:35:04 PDT (-0700)

there are only three possible burn morels that this could be (certainly not the entire genus Morchella! AS IF!): eximia, sexteleta, or exuberans. ONLY eximia is associated with seeps and creeks.

Here is the pull quote from Kuo’s webpage on eximia/septimelata:

“appearing in lightly to moderately burned conifer forests in western and northwestern North America, often near creek beds and seeps, in the spring or summer following the fire.”

note the word OFTEN.

neither the sextelata nor the exuberans descriptions mentions watercourses at all. only eximia. there is indeed a strong correlation.

it is a small advantage to we latin name seekers, but an advantage nonetheless. eximia is without a doubt the best name for this morel, with the data we already have.

beyond a shadow of a doubt, true.
By: Debbie Viess (amanitarita)
2015-05-10 09:34:43 PDT (-0700)

but with the info at hand, eximia is still the best guess.

again, my vote was Promising (which it is) not I’d Call it That. Without the DNA, it is not a slam dunk.

I don’t have photos of M. eximia
By: Alan Rockefeller (Alan Rockefeller)
2015-05-10 08:47:21 PDT (-0700)

Just dried material from the rim fire.

no one is saying that they are restricted to creeks ….
By: Debbie Viess (amanitarita)
2015-05-10 07:51:19 PDT (-0700)

we can safely assume that there was habitat information with each morel collection sequenced. for a generalization like this to have been made, there would have had to have been several collections of eximia found in wet zones, and few to none of septimelata.

do you have photos of sequenced eximia? let’s see ’em! There is nothing else up here on MO.

after all, I only voted “promising” for this sighting. it leans towards eximia, but only the DNA knows for sure!

By: Alan Rockefeller (Alan Rockefeller)
2015-05-09 22:20:25 PDT (-0700)

I found Morchella eximia at Yosemite and it was not near a seep/creek. I think it is a coincidence that they found some near a creek.

not quite equal odds …
By: Debbie Viess (amanitarita)
2015-05-09 21:02:57 PDT (-0700)

due to the habitat.

eximia is known (from sequenced material) to grow in seeps and along creeks; there was no such correlation with that extreme wet habitat with sextelata.

See Kuo’s description of septimelata for habitat details.

Dozens of these eximia were found all through the creek, on half submerged wood, along the banks, in adjacent vegetation, etc..

Created: 2015-05-09 16:04:36 PDT (-0700)
Last modified: 2015-05-17 11:31:54 PDT (-0700)
Viewed: 171 times, last viewed: 2016-11-20 02:42:13 PST (-0800)
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