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11-11-2019 05:13

Ethan Crenson

Found recently in a New York City park. It appears

10-11-2019 22:27

Viktorie Halasu Viktorie Halasu

Hello,I was given a nice collection of dark purple

10-11-2019 21:52

Michael Haldeman

Does anyone know what these are?  The spores are

09-11-2019 19:52

Koszka Attila

Today I find this fungus, on reed. I think it is a

09-11-2019 23:23

Bernard Declercq Bernard Declercq

Good evening, Observed on the surface of Pteridiu

09-11-2019 08:14

Mirek Gryc

HelloI am still looking for a name for this mushro

07-11-2019 19:56

Castillo Joseba Castillo Joseba

me mandan muestra  en seco  recolectada en caña

08-11-2019 17:43

Stefan Blaser

Hello everybody, I'm stuck with this collection a

07-11-2019 22:48

William Slosse William Slosse

After a few rainy days this species appears sudden

06-11-2019 11:49

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I cannot find a name for this fungus found a

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Tympanis conspersus ?
Ethan Crenson, 11-11-2019 05:13
Found recently in a New York City park. It appears to be a Tympanis sp., erumpent through fissues in the bark of a hardwood branch (possibly Quercus or Liriodendron tulipifera). The fertile surface is black and the margin and outer surface is pruinose with powdery granules. Asci measure approximately 103-162 x 15-25µm. The contents of the asci are very confusing, ranging from tiny granules to larger globose forms and other blobs. I thought I detected some hyaline allantoid spores with oil droplets at the ends, but I'm not sure they belong to this collection. They measured 3-4 x 1-1.5µm. Is it possible that this is Tympanis conspersus?
Thank you in advance.
Ethan
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Hans-Otto Baral, 11-11-2019 09:38
Hans-Otto Baral
Re : Tympanis conspersus ?
My impression is that the population is immature. perhaps you can riped it a bit? Important is to see the ascospores inside the asci and how the ascoconidia are formed on them when the asci are still alive.
The white powder on the exterior consists of crystals, presumably calcium oxalate, typical of T. alni (former conspersa) and some others.
Zotto