20-08-2025 19:04
Ethan CrensonHello, This asco was found on the same wood as my
21-08-2025 02:18
Stefan JakobssonOn a necrotic section of a living Tilia cordata I
19-08-2025 20:58
Ethan CrensonHi all, Here is what I believe to be a Hymenoscyp
12-08-2025 19:44
Enrique Rubio
Could someone send me a pdf copy of this article?S
18-08-2025 15:17
Lothar Krieglsteiner
... on 6.7.25 in a subarctic mire near a small lak
18-08-2025 15:07
Lothar Krieglsteiner
.. 20.7.25, in subarctic habital. The liverwort i
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Paul CannonHello all I have spent some time trying to work o
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Yanick BOULANGERBonsoirVoici un asco récolté le 08/08/2025Comme
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.