Observation 297931: Thuemenidium Kuntze

When: 2017-09-10

Collection location: Ottawa National Forest, Michigan, USA [Click for map]

46.1494°N 88.7666°W 488m [Click for map]

Who: Huafang

No specimen available

Spores 19-30×4.4-4.95um. I used Ascomycete Fungi of North America: A Mushroom Reference Guide as reference. Spore width is smaller than what’s in Ascomycete Fungi of North America. I don’t have micrograph that has other microscopic features.
My so called “dried” specimen of this species and other club-shape fungi I collected from UP trip got molds few days later after I dried them. Lesson learned.

I saw other micrographs with measurements on them. How do they do that? I use AmScope which saves the measurements in tft and can’t be upload to MO and can’t be opened with other software. All other image formats can’t save measurements using AmScope.

“macroscopically very similar” to what other species? Do you mean Geoglossum arenarium?


Copyright © 2017 Huafang
Copyright © 2017 Huafang
Copyright © 2017 Huafang
Copyright © 2017 Huafang
Copyright © 2017 Huafang

Proposed Names

85% (1)
Recognized by sight: NA version is unique

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Add Comment
the NA species
By: Danny Newman (myxomop)
2017-11-14 21:29:35 EST (-0500)

is not yet described to science. The morphological differences which set the true T. atropurpureum and its NA cousin apart are at least some difference in spore size, possibly other features as well. This comes direct from Vincent Hustad, who has worked extensively with Geoglossomycetes.

NA version is unique?
By: Huafang
2017-11-14 20:22:28 EST (-0500)

Unique in what way? Could you elaborate? I found them by the hundreds in two different locations. In Ascomycete Fungi of North America: A Mushroom Reference Guide, it mentions Thuemenidium arenarium (= Geoglossum arenarium) is the only other northern species in the genus Thuemenidium.

By: zaca
2017-11-11 08:40:56 EST (-0500)

the spores look like those of T. atropurpureum:

Geoglossum fallax can be …
By: zaca
2017-11-10 13:17:04 EST (-0500)

macroscopically very similar. Microscopy will be needed for identification.

By: Danny Newman (myxomop)
2017-11-10 08:00:07 EST (-0500)

did you save this and, if so, can you post some micrographs of the spores with measurements?

Created: 2017-11-09 21:27:20 EST (-0500)
Last modified: 2017-11-11 14:36:56 EST (-0500)
Viewed: 107 times, last viewed: 2019-10-18 12:42:46 EDT (-0400)
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