14-03-2025 23:29
Warre Van CaenegemGood evening everyone. Last year, I found this cop
13-03-2025 09:25
Yanick BOULANGERBonjourJe poste ce pyrénomycète, pas pour Chaeto
13-03-2025 15:54
Pavel JiracekEverything looks good for L.virgineum except for t
11-03-2025 17:22
Lothar Krieglsteiner
found last November in the Algarve, Serra Monchiqu
17-12-2024 20:05
Lothar Krieglsteiner
in the Algarve, Serra Monchique, on old Xylaria ci
Pyreno on Pinus
Juuso Äikäs,
23-03-2025 01:00
These little black pyrenos were growing on bark of a fallen Pinus sylvestris branch. Some of the perithecia were more or less round, and some had a little neck.
These appeared to be rather old fruitbodies, but there were spores inside. Some had a septum, which was located either centrally or inequilaterally. The spore surface has some minute ornamentation, and the size of the spores is quite large: 34.5 - 38.5 × 12.9 - 15.6 µm, Q = 2.2 - 2.7; avg = 35.8 × 14.4 µm, Qav = 2.5; n = 5.
Any thoughts about the species/genus/family?
Mathias Hass,
23-03-2025 06:37
Re : Pyreno on Pinus
Hi Juuso
Looks very much like Diplodia sapinea, pycnidia with conidia. This fungus is very common on Pinus cones, needles, twigs and bark. May occasionally also be found on other coniferous trees, at least as D. sapinea s.l.
Kind regards
Mathias
Juuso Äikäs,
23-03-2025 06:57
Re : Pyreno on Pinus
Thank you Mathias. Yes, that does seem to fit. Apparently this species has just recently begun spreading here.