Accès membres

Mot de passe perdu? S'inscrire

02-11-2024 16:34

B Shelbourne B Shelbourne

• Host suggests Sawadaea bicornis or Phyllactini

01-11-2024 14:54

Rot Bojan

Can someone tell me more about this mushroom pleas

31-10-2024 22:25

Karen Poulsen

Hello, On half weathered Betula leaf, I noticed t

31-10-2024 21:42

Karen Poulsen

Hello, On last year's pine needles on the ground

28-10-2024 17:51

B Shelbourne B Shelbourne

• Macro and habitat suggest Hymenoscyphus s.l.,

24-10-2024 23:07

Patrice TANCHAUD

Bonsoir, récolte réalisée sous hêtres et chê

28-10-2024 23:30

Marc Detollenaere Marc Detollenaere

Dear Forum,I found some small fruit bodies of abou

24-10-2024 14:39

Jean-Luc Ranger

Bonjour à tous,Découvert sur un terrain calcaire

25-10-2024 02:15

B Shelbourne B Shelbourne

• Very few macro characters and I initially thou

26-10-2024 16:19

Juuso Äikäs

Yesterday I found some small white Helotiales grow

« < 63 64 65 66 67 > »
Possibly Mycothyridium lividum (to confirm)
Stephen Martin, 13-11-2024 08:01
Stephen MartinI am revising some old material again and I have these black semiglobular perithecia on bark of Thymus capitatus, about 0.5 mm in across mostly immersed in the woody bark. The ascospores are 5-7 septate (or having 6-8 compartmnts if that is easier), brownish-black, arranged imbricately or stacked diagonally in the ascus. The Asci are also interesting for having a broad funnel-shaped pore with a lonk neck when not fully mature and I think they are J-ve and bitunicate. Ascospores dextrinoid in KI (?). Paraphyses simple, threadlike, unspecialised, flexuous, 2-3um wide. 


Asci size (mean): 150 x 15 um
Ascospores (mean) : 18 x 9 um 


I am considering this to be Mycothyridium lividum, already reported from thyme but expert advice is welcomed. There is actually one thing that I am not seeing in my collection - the ascospores of (Myco)Thyridium lividum sometime have diagonal septae - not sure if this is characteristic for the species. Mattirolia sp. is another fungus to consider, (e.g. Mattirolia ohiensis = Teichospora ohiensis Ellis & Everh)...
  • message #80658
  • message #80658
  • message #80658
  • message #80658
  • message #80658
  • message #80658
  • message #80658
  • message #80658
  • message #80658