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04-10-2025 02:17

Masanori Kutsuna

Hello, This is a quite common species on rotten w

03-10-2025 22:03

Francois Guay Francois Guay

Hi everyone, I found this weird asco growing on wo

03-10-2025 22:17

Francois Guay Francois Guay

Hi everyone,   I found this white, star-shaped

04-10-2025 02:13

Francois Guay Francois Guay

Hi everyone,   I found this Hymenoscyphus growi

03-10-2025 13:44

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Populus

03-10-2025 10:25

Jean-Luc Ranger

Que pensez-vous de ce Chaetomium sp : 10- 10,5 x 6

03-10-2025 09:43

Josep Torres Josep Torres

Tiny blackish ascomata shaped like erumpent grains

02-10-2025 09:16

Josep Torres Josep Torres

Hello.Some tiny apothecia sprouting in a scattered

01-10-2025 20:16

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I would appreciate your opinion on this yell

01-10-2025 19:47

Philippe PELLICIER

Un parasite sur les feuilles de graminées qui for

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Pyrenomycete on Hedera
Josep Torres, 03-10-2025 09:43
Josep TorresTiny blackish ascomata shaped like erumpent grains, measuring between 0.6 and 1 mm long by 0.35 and 0.45 mm wide.
Hyphae on the peridium and exciple have an angular texture.
Conidiogenous hyphae widen at their bases and gradually taper, ending in more or less pointed shapes, measuring (17.8) 20.7 - 30.2 (30.4) × (1.6) 1.8 - 2.4 (2.6) µm.
These conidiogenous hyphae produce ellipsoidal, hyaline conidia with one or two large lipid droplets inside. Free conidia with brown intracellular pigment were also observed, which could perhaps correspond to mature conidia.
These conidia measure:
(7) 7.6 - 9.29 (9.3) × (3.6) 4.2 - 5.2 (5.7) µm
Q = (1.5) 1.6 - 2 (2.1) ; N = 20
Me = 8.5 × 4.8 µm ; Qe = 1.8
I am fully aware of the difficulty of identifying species like this, but I will not fail to prove it.
This conidiogenesis vaguely reminds me of genera like Diplodia, but the conidia are too small to even be considered a genus.
Any feedback from you would be welcome.
Thank you very much in advance.
Best regards.
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