Accès membres

Mot de passe perdu? S'inscrire

24-02-2026 00:21

Benoît Segerer

Hello,I'm new to this forum, I hope I won't be irr

23-02-2026 11:22

Thomas Læssøe

https://svampe.databasen.org/observations/10584971

29-11-2024 21:47

Yanick BOULANGER

BonjourJ'avais un deuxième échantillon moins mat

07-02-2023 22:28

Ethan Crenson

Hello friends, On Sunday, in the southern part of

19-02-2026 17:49

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

19-02-2026 13:50

Margot en Geert Vullings

We found this collection on deciduous wood on 7-2-

19-02-2026 12:01

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia (España), recole

17-02-2026 09:41

Maren Kamke Maren Kamke

Good morning, I found a Diaporthe species on Samb

16-02-2026 21:25

Andreas Millinger Andreas Millinger

Good evening,failed to find an idea for this fungu

« < 1 2 3 4 5 > »
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
  • message #79987
  • message #79987
  • message #79987
  • message #79987
  • message #79987
  • message #79987
  • message #79987
  • message #79987
  • message #79987
  • message #79987
  • message #79987
  • message #79987
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