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09-06-2026 18:32

Camille Mertens

Sur morceau de roseau immergé 0,5 - 0,7 mm de dia

08-06-2026 10:16

Spooren Marco Spooren Marco

I don`t have a clou about this fungus,it is not in

08-06-2026 17:00

François Bartholomeeusen

Good day everyone, On June 5 2026, I collected de

07-06-2026 18:18

Mario Schulz

Hello everyone, i found on 31.5 the following Mol

07-06-2026 15:10

William Slosse William Slosse

Hello everyone,On 05-06-26, I found following asco

05-06-2026 11:02

Thomas Læssøe

https://svampe.databasen.org/observations/10596691

07-06-2026 12:09

François Freléchoux François Freléchoux

Bonjour, Voici une brève description de ce qui m

07-06-2026 12:43

Steve Clements

Bojour. This was a strange find on a stick on my

12-07-2015 00:05

Nedim Jukic Nedim Jukic

This one from the same locality as the previous on

06-06-2026 17:44

Steve Clements

Bonjour, This disco was on planed wood 3 x 1.5 cm

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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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