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10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

09-09-2025 12:07

Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

08-09-2025 19:07

ruiz Jose

Hola me pasan esta recolecta en madera de fraxinus

03-09-2025 21:59

Philippe PELLICIER

La Léchère, Col de la Madeleine, alt 1970m, au s

06-09-2025 21:40

David Chapados David Chapados

Hi, Does somebody know the genus that has those b

07-09-2025 11:34

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I have identified this fungus as Hymenoscyph

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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