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13-09-2025 14:10

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

13-09-2025 15:43

Edmond POINTE Edmond POINTE

Bonjour Christian,J'ai trouvé deux spores ressemb

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

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

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unknown discomycete from Brooklyn
Ethan Crenson, 29-06-2025 18:11
Hello all,

A friend found this disco yesterday in Brooklyn, NY decorticated hardwood in a wooded park. The largest had a diameter of about 4mm. It showed no response in KOH.

The spores are very small ellipsoid and somewhat acute at the ends with a guttule at each pole. 2.6-2.8 x 1.6-2µm

Asci are faintly IKI+, about 60 x 3.7µm, the spores uniseriate, they appear to have a long tail.

Ectal excipulum is a brown textura angularis, the terminal cells globose about 5.5-6.0µm in diameter.  Medullary excipulum is hyaline and textura intricata.

Paraphyses are cylindrical and appear to have oil content.

Any assistance is greatly appreciated.

Thanks!

Ethan
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Hans-Otto Baral, 29-06-2025 21:41
Hans-Otto Baral
Re : unknown discomycete from Brooklyn
Hi Ethan

what a surprize! But you are too late, the MS is now in layout and will soon be published :-)

It is a Peltigeromyces and probably our new species from Europe, which is due for publication since many years. But - as often - papers take a huge amount of time.

If you have the possibility, please give it for sequencing. ITS will be enough.

The family is also a new one, Peltigeromycetaceae, related to Ploettnerulaceae.

Zotto
Ethan Crenson, 29-06-2025 22:26
Re : unknown discomycete from Brooklyn
Hi Zotto, and thank you!

Is this is what is sometimes referred to as Parthenope pilatii? And do I understand that it has an anamorph in the form of yellow cushions? I think that is what I have seen in my collection... I have added a photo

I do not know what the substrate is for this collection, but it is definitely not Alnus. I have added a photo of the wood in cross section which might give some information.  Trees in the area were Quercus, Fagus, Liriodendron, Ulmus, Liquidambar. 

Of course I will sequence this collection as soon as I can!
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