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17-09-2025 19:43

Philippe PELLICIER

Sur branche morte de Mélèze. Les ascospores sphÃ

17-09-2025 16:14

Philippe PELLICIER

Apothécies enterrées, fermées au début puis s'

17-09-2025 10:50

Heather Merrylees

Hi there!I am hoping for any advice on the identif

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

16-09-2025 12:53

Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

03-09-2025 12:44

Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

15-09-2025 14:40

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for a digital copy of the seco

14-09-2025 22:16

Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

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Haematomyxa vinosa
Ethan Crenson, 13-08-2024 17:31
Hello again!

Last weekend in Northern New Jersey I found what I believe to be Haematomyxa vinosa.  It was growing on an unknown hardwood in association with Berkleasmium conglobatum. Rough and sometimes irregularly shaped black discs reaching about 1mm in diameter, they have a burgundy tinge.

The asci are bitunicate. In section there is purple pigment between the asci. Spores inside the asci are golden brown, muriform and larger than ejected spores—about 40 x 14µm.  Ejected spores—I managed to get about 6 of them— are darker brown and 28.2-36.5 x 11.7-15.6µm. They are constricted at the central septa and usually curved. In KOH the apothecia emit an olive green/gray green pigment.  I did not see paraphyses, perhaps I missed them.

My determination of Haematomyxa vinosa was only possible when I rediscovered this post I made from 2017:


Although there is a partly unresolved conversation in that post, I feel that the determination is fairly solid, but I am open to other thoughts.  Other thoughts?

It is remarkable to me how infrequently this asco is collected. I see only one observation of it on iNaturalist, three records in Mycoportal.

Ethan
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Hans-Otto Baral, 14-08-2024 20:23
Hans-Otto Baral
Re : Haematomyxa vinosa
Hi Ethan

I am sure it is! Yes, I know no other record than you indicate.

Zotto