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02-01-2026 22:48

éric ROMERO éric ROMERO

Bonjour tous, Je profite de cette nouvelle demand

02-01-2026 19:35

William Slosse William Slosse

Good evening everyone,First of all, my best wishes

02-01-2026 17:43

MARICEL PATINO

Hi there, although I couldn't see the fruitbody, I

01-01-2026 18:35

Spooren Marco Spooren Marco

Original loamy soil aside a artificial lake.The co

31-12-2025 19:27

Spooren Marco Spooren Marco

Collected from loamy soil, at waterside (completel

29-12-2025 17:51

Blasco Rafael Blasco Rafael

Hola, me pueden ayudar con esta muestra.Recogida s

30-12-2025 16:44

Pascal Ducos

Bonjour,Une anamorphe rose stipitée, très nombre

29-12-2025 23:20

éric ROMERO éric ROMERO

Bonjour, Une récolte du mois d'août 2025 en tou

30-12-2025 17:14

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous aider Albe

30-12-2025 15:31

Johan Boonefaes Johan Boonefaes

I found this unknown star form by the microscopy o

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Pyreno with versicolorous spores on Hickory nut shell
Ethan Crenson, 20-04-2021 18:50
Hello all,

Earlier this week I found this pyrenomycete in a New York City Park. It was growing on the shell of a Hickory nut, possibly Carya glabra.  Uni-peritheciate, but sometimes growing in conjoined clusters. Brittle and carbonaceous. Unfortunately, it was a bit overripe, because I was unable to find asci and the spores looked a little worn out.  But they had an unusual feature which I have never encountered: a dark brown band at the midpoint and hyaline, or near-hyaline end cells.  Ascospores measure 12-16 x 5-6µm. They are either two or three septate (it is hard to tell if there is a septation underneath the dark band.). Has anyone any idea what this might be?

Thanks in advance,

Ethan
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Ethan Crenson, 20-04-2021 19:34
Re : Pyreno with versicolorous spores on Hickory nut shell
I definitely see a resemblance to Melanomma cf. minervae in the database collected by Alain Gardiennet on 31-03-2012 (http://www.ascofrance.fr/search_recolte/3195) on the substrate Noyau de cornouille.  And also Melanomma cf. minervae collected by Savic Dragisa on 14-03-2019 (http://www.ascofrance.fr/search_forum/56784) on a seed of Cornus.  Am I on to something here?
Ethan Crenson, 20-04-2021 19:58
Re : Pyreno with versicolorous spores on Hickory nut shell
I have also found a reference to what I believe is my pyreno in Charles E Fairman "The fungi of our common nuts and pits", Rochester Academy of Science 1921. But I suspect that the information contained therein might need updating.
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