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25-08-2025 17:37

François Freléchoux François Freléchoux

Bonjour,Nous avons trouvé samedi dernier à l'ét

24-08-2025 21:30

Ethan Crenson

Found yesterday in a New Jersey park.  An Orbilia

24-08-2025 21:59

Edmond POINTE Edmond POINTE

Bonsoir amis mycologues,Trouvé sur crottin de che

21-08-2025 18:09

Edmond POINTE Edmond POINTE

Bonjour Amis mycologues.Trouvé sur crottin de che

22-08-2025 18:10

Ethan Crenson

Hello everyone,  I found what I think might be P

20-08-2025 19:04

Ethan Crenson

Hello, This asco was found on the same wood as my

22-08-2025 08:41

Masanori Kutsuna

Hello.Can anyone help me to get this article?Liu H

21-08-2025 02:18

Stefan Jakobsson

On a necrotic section of a living Tilia cordata I

18-08-2025 23:15

Zoe Vélez Zoe Vélez

Hola foro, gracias por aceptar la creación de mi

19-08-2025 20:58

Ethan Crenson

Hi all, Here is what I believe to be a Hymenoscyp

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roseodiscus sp?
Robin Isaksson, 07-12-2020 21:25
Robin IsakssonHi!

Found this one in sweden some days ago.

that that it would be R. formosum but asci react blue not red in Lugols.

Spores 10-11 x 3-3,5 um with some olidrops. some spores twocelled. Some sporeends react red with lugols as in formosum, maybe all but hard see.
I see on the web its a collection from spain that have blue reactions on asci.
maybe same or is it a variation on formosum?

host moss is Ceratodon purpureus.

anyone knows moore about it?

regards
  • message #66357
  • message #66357
  • message #66357
  • message #66357
Hans-Otto Baral, 08-12-2020 09:13
Hans-Otto Baral
Re : roseodiscus sp?
Yes, there is a collection by Enrique, ERD-6978 on Ceratodon purpureus, which reacts blue (BB) and deviates from R. formosus by 2.7% in the ITS. Other differences are hard to see.

Since typical R. formosus reacts pure red (type RR), there seems indication that your sample belongs to the Spanish one.

Did you collect yours in Scandinavia?
Robin Isaksson, 08-12-2020 17:17
Robin Isaksson
Re : roseodiscus sp?
Hi!

As you say it was like any another r. Formosum But Asci reactions are blue instead.

Yes the find is from Halland in Sweden, scandinavia on sandy basepoor habitat.

This is great, i will put it in the herbaria uppsala as roseodiscus sp.

Best regards,

Robin
Hans-Otto Baral, 08-12-2020 17:50
Hans-Otto Baral
Re : roseodiscus sp?
Thanks! It is a pity that you did mocroscopy only on the dried sample.