16-01-2026 00:45
Ethan CrensonHi all, On decorticated hardwood from a New York
10-01-2026 20:00
Tom SchrierHi all,We found picnidia on Protoparmeliopsis mur
13-01-2026 07:28
Danny Newman
Chlorociboria glauca on indet. decorticate logThe
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
15-01-2026 15:55
Lothar Krieglsteiner
this one is especially interesting for me because
13-01-2026 08:43
Danny Newman
Tricladium varicosporioides on indet. decorticate
07-01-2026 22:22
Danny Newman
Tatraea sp. on indet. hardwood The Swag, Great Sm
13-01-2026 09:10
Danny Newman
Dasyscyphella chrysotexta on indet. decorticate ha
13-01-2026 10:13
Danny Newman
Cordieritidaceae sp. on indet. wood w/ Hypoxylon s
An ascomycete from last May 10th, sprouting on the surface of a barked trunk of Pinus sylvestris on the ground.
Apothecia sprouting in a scattered manner, like grains, between 0.4 and 0.7 mm in diameter.
Hyphae of the exciple with ochre-brown intracellular pigment.
Apparently octosporic asci, which appear bitunicate. I have not been able to clearly observe any uncinules at their bases, and they are practically unreactive to KOH or Melzer's reagent, with measurements of (101.4) 114.2 - 126.1 (129.7) × (16.2) 16.24 - 19.5 (19.9) µm.
The paraphyses are slightly branched, filiform, with few septa and a width of 1.3 to 1.8 µm.
Some asci appear to have what could be considered ascoconidia inside, and the few more or less developed spores I have observed have a moriform appearance, with a slightly pointed end, 3 or 4 transverse septa, and some scattered longitudinal septa. The measurements within the ascus are (14.1) 14.2 - 17.1 (17.9) × (5.9) 6.6 - 6.7 (6.8) µm.
With this appearance and for Pinus sylvestris, the closest I know would be Placynthiella uliginosa, but microscopy does not match at all.
Any feedback from you would be welcome.
Thank you very much in advance.
Best regards.
I'm lost in my head. I don't understand why I didn't recognize it. It must be my age. I studied Vexillomyces atrovirens a little over a year ago, and back then, you identified it for me. Here's the link to the topic I presented at the time.
https://www.fungipedia.org/setas-informacion-y-consultas/19-microscopia/74335-vexillomyces-atrovirens-pers-baral-quijada-g-marson-microscopia.html#109930
Best regards.

















