19-05-2026 12:55
Hardware Tony
After checking Gminder and Otto's library I cannot
19-05-2026 10:27
Patrice TANCHAUDBonjour, récolte récente sur terre retournée i
18-05-2026 12:43
Sylvie Le GoffBonjour à tousPuis je avoir votre aide sur ce que
19-05-2026 14:56
Åge OterhalsI found this white cushion-formed ascomycete on ro
18-05-2026 10:13
Lieve Deceuninck
Dear forum members,I identified this as the teleom
17-05-2026 19:05
Thomas FlammerI have found this tiny 200 ym cup shaped apothecia
17-05-2026 16:41
Margot en Geert VullingsWe found this Lachnum on an old Rubus stem.Fruitbo
Hymenoscyphus-like species
Nicolas VAN VOOREN,
25-08-2011 15:57
Bonjour / Hello.Voici un Helotiale qui me pose problème. Espèce récoltée parmi des mousses et des hépatiques, au bord d'un ruisseau, mais non greffée aux mousses, plutôt aux petits débris (aiguilles d'épicéa, feuille morte de Vaccinium...)
Apothécies Ø 2-4 mm
Excipulum ectal de textura primastica. Asques 95-105 x 8-10 µm, sans crochet (difficile d'être affirmatif à 100%), à 8 sp. bisériées (pars spor. 40-50 µm), à anneau apical IKI+ (bb), type Hymenoscyphus. Paraphyses sans vacuole, à sommet parfois difforme. Spores ciborioïdes, 12,2-15 (19) x 4-5,5 (6) µm, parfois avec 1 cloison (y compris dans l'asque), avec de rares guttules (1-4).
Une idée ?
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English description
Ectal excipulum of textura primastica. Asci 95-105 x 8-10 µm, without crozier (not sure at 100%), with 8 biseriate spores (pars spor. 40-50 µm), apical ring IKI+ (bb), Hymenoscyphus type. Paraphyses without VBs, with some twisted apex. Spores ciborioid, 12.2-15 (19) x 4-5.5 (6) µm, sometimes 2-celled (including in ascus), with rare LBs (1-4).
Microscopic characters
Hans-Otto Baral,
25-08-2011 18:35
Re : Hymenoscyphus-like species
Did you compare my Hymenoscyphus pezoloma = Pezoloma herbicola nom. prov.?
Needs to have croziers and is more white, but otherwise quite similar. Also quite unspecific to the substrate.
Zotto
Needs to have croziers and is more white, but otherwise quite similar. Also quite unspecific to the substrate.
Zotto
Nicolas VAN VOOREN,
25-08-2011 19:28
Re : Hymenoscyphus-like species
Indeed, it seems that your H. pezoloma is close to this species. My apos were all yellow and stipitate, and the content of the spores seems to be a bit different...
In my previous description, I ommited to mention that the cells of excipulum do not react in Lugol reagent.
In my previous description, I ommited to mention that the cells of excipulum do not react in Lugol reagent.
Hans-Otto Baral,
25-08-2011 21:07
Re : Hymenoscyphus-like species
Did you tgry with Congo red to be sue about the croziers? If the fungus is still fresh and in bon etat, a section should give a clear result.
The apical ring is a bit too narrow for this Pezoloma species. Looks more like a true Hymenoscyphus. But without VBs is strange.
Zotto
The apical ring is a bit too narrow for this Pezoloma species. Looks more like a true Hymenoscyphus. But without VBs is strange.
Zotto
Nicolas VAN VOOREN,
25-08-2011 21:40
Re : Hymenoscyphus-like species
I will check again for the croziers.
Nicolas VAN VOOREN,
27-08-2011 17:42
Re : Hymenoscyphus-like species
I confirm that asci do not have any crozier (see pictures)
