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09-11-2025 13:20

Ascomycete on Rubus.
Josep Torres Josep Torres

Hello.A tiny ascomycete, appearing as erupting gra

08-11-2025 12:10

Phacidium
Elisabeth Stöckli

Bonjour, Trouvé sur tiges mortes de Rubus (ronce

08-11-2025 00:29

Allophylaria subliciformis?
Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

04-11-2025 14:53

Leptosphaeria?
Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

08-11-2025 09:15

Mollisia sur Pinus
Michel Hairaud Michel Hairaud

Bonjour, Pouvez vous m'aider à identifier ce Mol

06-11-2025 16:50

Hymenoscyphus sp?
Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

05-11-2025 11:33

Cladosporium ?
Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Hymenoscyphus on blueberry.
Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Protounguicularia transiens?
Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

03-11-2025 21:34

Tatraea sp. ? on Populus tremula
Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

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Allophylaria on petioles
Juuso Äikäs, 10-10-2022 10:08
These hyaline - pale yellow fruitbodies were growing on petioles together with Typhula erythropus. The place was dominated by Alnus glutinosa, and there were also at least Salix caprea trees nearby. Alnus is probably the likeliest substrate. 

Asci 8-spored, with croziers, IKI+ dirty red. Paraphyses narrow, widened at the tip, with a VB. Ectal excipulum of textura oblita or porrecta, methinks. Spores 13.7 - 15.2 × 4 - 4.6 µm.

I think this belongs to Allophylaria, but no clue about the species...
  • message #74042
  • message #74042
Hans-Otto Baral, 11-10-2022 09:09
Hans-Otto Baral
Re : Allophylaria on petioles
This fits well A. nervicola, which I often found on Acer but often also on Alnus and various other trees. The related A. subhyalina occurs instead most predominantly on Acer but has larger spores with acute tips.
Juuso Äikäs, 11-10-2022 17:09
Re : Allophylaria on petioles
I checked your folder, and yes -- this seems to fit quite nicely. Btw, the date in my photos is always the date of collection.
Hans-Otto Baral, 12-10-2022 10:00
Hans-Otto Baral
Re : Allophylaria on petioles
Ah, I overlooked the date, thanks! I have now checked all your Helotiales for the date and corrected those where I missed your data. But for some older ones the date is missing: Hymenoscyphus fructigenus aff., ~6.IX.2020, Hymenoscyphus phiala, ~17.VII.2020, Albotricha acutipila, ~8.VII.2020, Mollisia ~8.VI.2020 and ´Coryne´ terrestris, ~12.VIII.2020
Juuso Äikäs, 12-10-2022 13:32
Re : Allophylaria on petioles
Here are the correct ones:

Hymenoscyphus fructigenus aff. 7.IX.2020
Hymenoscyphus phiala, 17.VII.2020
Albotricha acutipila, 6.VII.2020
Mollisia (cf. fusca on Vaccinium) 8.VI.2020
´Coryne´ terrestris, 14.VIII.2020
Hans-Otto Baral, 12-10-2022 21:10
Hans-Otto Baral
Re : Allophylaria on petioles
Thanks!