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19-05-2026 10:27

Patrice TANCHAUD

Bonjour, récolte récente sur terre retournée i

04-06-2026 18:39

Gernot Friebes

Hi,I collected this species in two different locat

22-05-2026 13:29

Gernot Friebes

Hi,I am curious to hear your opinion on this mater

04-06-2026 15:28

Tony Cumberlidge

I have recently found the very helpful European Ke

04-06-2026 10:50

François Freléchoux François Freléchoux

Bonjour, J'ai trouvé hier un petit asco observé

04-06-2026 07:02

François Freléchoux François Freléchoux

Bonjour, Voici la description d'une espèce qui p

04-06-2026 13:34

Gernot Friebes

Hi,I am interested to hear your opinion on this Le

04-06-2026 11:36

Gernot Friebes

Hi,found on Vaccinium myrtillus.Asci: IKI –, 8-s

04-06-2026 11:14

Philippe PELLICIER

Bonjour, Sur bois mort de conifère (Larix, Pinus

18-10-2022 00:12

Valencia Lopez Francisco Javier

Hola amigos/asRecientemente encontré esta colecci

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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.