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29-12-2025 23:20

Sordariomycetes
éric ROMERO éric ROMERO

Bonjour, Une récolte du mois d'août 2025 en tou

29-12-2025 17:44

Lamprospora ? laquelle ?
Isabelle Charissou

Bonjour,J'aimerais savoir si d'autres personnes au

29-12-2025 17:51

En Rosmarinus
Blasco Rafael Blasco Rafael

Hola, me pueden ayudar con esta muestra.Recogida s

29-12-2025 17:12

asco imparfait et oïdium sur tige morte de Polygonatum odoratum
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

12-11-2021 00:03

White dots on pine
Lepista Zacarias

Hi everybody,A week ago in my fiels trip I noticed

29-12-2025 17:01

Hyphomycete on Rubus fruticosus agg.
Gernot Friebes

Hi,I'm looking for help with this hyphomycete with

29-12-2025 08:30

Ascomycete among bryophytes.
Josep Torres Josep Torres

Hello.A tiny ascomycete sprouting under Juniperus

29-12-2025 10:15

Propolis sp. on Pinus sylvestris
Hulda Caroline Holte

Hello, I found and collected this propoloid ascom

29-12-2025 09:38

Phaeohelotium on deciduous wood?
Oskari Virtanen

Hi,could anyone help me identify this, I suspect P

24-12-2025 18:12

Orbilia
Ethan Crenson

Hello all, A friend found this Orbilia growing on

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Phaeohelotium sp.
Yannick Mourgues, 23-10-2017 00:24
Yannick MourguesFound at the base of dead stems of Anethum graveolens (Apiaceae).

Spores 15-17,4x2,2-2,9um Q=5,5-7,1 ends rounded, some guttules inside.

Ascus IKI+, pleurorhynques, spores biserriate

Paraphyses l=2,1-2,9um with a slightly enlarged apex (l=4um).

Any idea ?
  • message #50796
  • message #50796
  • message #50796
Hans-Otto Baral, 23-10-2017 06:28
Hans-Otto Baral
Re : Phaeohelotium sp.
Hi Yannick
this is a Calycina, possibly C. subherbarum (I do not see the ascus base well). Compare also C. heterospora, which turns red with age, however.
Zotto
Yannick Mourgues, 23-10-2017 11:17
Yannick Mourgues
Re : Phaeohelotium sp.
Thank's Zotto.
Well... I don't know. I don't know C. subherbarum.
I don't think it's C. heterospora because apos don't turn red when hurted. And apical rings of ascus are blue in IKI.
Here is a photo of ascus base.
Thank's for your help.
Yannick
  • message #50804
Hans-Otto Baral, 23-10-2017 11:47
Hans-Otto Baral
Re : Phaeohelotium sp.
Yes, clearly with croziers. So I think it is C. subherbarum. Apos are perhaps over 1 mm?
Yannick Mourgues, 23-10-2017 12:40
Yannick Mourgues
Re : Phaeohelotium sp.
Thank's again. Apos are 1-2mm wide.
Have you got a reference of a publication for C. subherbarum or is-it a work name ?
Yannick
Hans-Otto Baral, 23-10-2017 12:51
Hans-Otto Baral
Re : Phaeohelotium sp.
It is a working name. There is a valid Hymenoscyphus subherbarum which seems a Calycina too but has much smaller spores.

Zotto