12-01-2026 05:24
Danny Newman
Cyathicula coronata on Urtica dioicaCataloochee Di
11-01-2026 20:35
Josep Torres
Hello.A very tiny pyrenomycete sprouting sparsely
15-12-2025 11:49
Danny Newman
ITS sequences from the following two collections B
09-01-2026 17:41
Arnold BüschlenHallo, F. dilatata wird von vielen Bryoparasiten
10-01-2026 20:00
Tom SchrierHi all,We found picnidia on Protoparmeliopsis mur
07-01-2026 22:22
Danny Newman
Tatraea sp. on indet. hardwood The Swag, Great Sm
10-01-2026 01:18
Danny Newman
cf. Neovaginatispora fuckelii on indet. shrub Pre
07-01-2026 10:24
Danny Newman
Pezicula sp. on indet. hardwood Appalachian Highl
09-01-2026 10:08
Blasco Rafael
Hola, en el mismo habitat que la anteriorRetamaDia
08-01-2026 21:22
Blasco Rafael
Hola, He recogido esta muestra de Orbilia sobre Re
I have Collected a Diatrypaceae on hardwood.
Here are some features:
Perithecia immersed, usually separated, spherical / ovoid with a diameter of 600-900um.
Ostioles emerging separately. With a round shape the diameter is about 350um.
Asci octosporadas on a long pedicel clearly IKI +
Are not mature perithecia and spores are difficult to obtain, however, the size of which are measured are on average 17.7x4.2um, and are slightly allantois.
With these data, I think it might be Cryptosphaeria and within this genre fits better with C.subcutanea.
You can give me your opinion?
Thank you very much, greetings
Susana
again an interesting find. I agree it resembles Cryptosphaeria by many traits but in this genus the wood surface beneath the stromata is typically strongly blackened unlike what shows your photo 2.
I suggest you observe a stroma in vertical section and compare it to Rappaz' description.
Moreover, C. subcutanea which might fit as to ascospore dimensions differs in having inamyloid asci and a fairly boreal distribution on Salix.
Try to find mature ascospores to check whether they become pigmented or stay hyaline.
Good luck!
Jacques
I found mature perithecia, and spores are pigmented, they are brown.
I made cross sections, and I noticed that the perithecia are grouped two to three and their necks are emerging together.
There is a black dorsal line (Fig.2) and in some cases a ventral black line also appears (Figure 3).
Now I think it may be Eutypella dissepta. It can be?
Saludos
Susana
