16-11-2025 21:09
Robin Isaksson
Anyone recognize this acc. to pictures.? Found on
17-11-2025 21:46
Philippe PELLICIERBonjour,Récolté sur bois pourrissant de feuillu
17-11-2025 21:57
Philippe PELLICIERBonjour,Récolté sur bois de feuillu mort dur, no
17-11-2025 19:14
herman lambertApothécie discoïde 0.6 cm diam., orangeFace hym
14-11-2025 16:26
Marian Jagers
Hello everyone, On dead wood of Cytisus scoparius
15-11-2025 23:22
Mario FilippaHello,this is what I think to be Hymenoscyphus mac
15-11-2025 20:25
Riet van Oosten
Hello, Found by Laurens van der Linde, Nov. 2025
14-11-2025 18:31
Lothar Krieglsteiner
Hello,can somebody provide me with a file of:Rothe
I have a difficult situation with this pyreno from the Northeastern US. It's a Dothideomycete, bitunicate, the asci developing in white locules in a black stroma that is erumpent through the substrate, the bark of Gray Birch, Betula populifolia.
Asci: clavate, bitunicate, 102-187 x 17.5-22.5µm.
Ascospores: unicellular, hyaline, many guttules, broadly ellipsoid, 20-24 x 8-10.5µm.
I also found in pycnidia on the same bark nearby. Also black and erumpent, but with locules that are dark at the center. The pycnidia contain brown conidia that are finely warted. They measure about 17.5-26 x 9-12µm. I am uncertain if the pycnidia are the asexual stage of the asco I described first.
I have indicated on the photos when they depict the pycnidia.
Perhaps someone can take a look and let me know. Is this Botryosphaeria, or Diplodia or something else?
Thank you in advance,
Ethan
due to the morphology and the size of the conidia I think it is Diplodia seriata, the sexual form I cannot assure it is from D. seriata
.Best wishes
Angel
I think you have Botryosphaeria with your teleomorph, the white locales when cut, the large spores, thick bitunicate asci, and the “nipple” at the apex of the ascus takes the cake. Since diploidia is an anamorph of bot, it’s possible you have both sexual and asexual fruiting. I see B. dothidea in the northeast often on woodies.
Devin
Best wishes
Angel