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18-01-2026 12:24

Josep Torres Josep Torres

Hello.An anamorph located on the surface of a thin

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

25-01-2026 16:08

Malcolm  Greaves Malcolm Greaves

This Geoglossum had spores mostly 70-80 (87) with

23-01-2026 21:50

Cameron DK

I am looking for this please publication. is anyon

10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

21-01-2026 19:55

Bohan Jia

Hi,  Could this be Nemania aureolutea? Or did I

21-01-2026 16:32

Gernot Friebes

Hi,I need your help with some black dots on a lich

21-01-2026 16:48

Gernot Friebes

Hi,after my last unknown hyphomycete on this subst

20-01-2026 17:49

Hardware Tony Hardware Tony

I offer this collection as a possibility only as e

15-01-2026 15:55

Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

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Black Perithecia with Conidiomata in Pink Stained Wood
Peter Thompson, 24-04-2013 23:37
Hello Everyone,

I have a collection of black, spherical perithecia accompanied by brown conidiomata with paler tips and ball shaped 'joints' as well as regular septation. These conidiomata are surrounded by pinkisk red staining of the decorticated wood of the host.

The microscopy shows 8-spored asci; the spores readily splitting at their central septum. The spores are hyaline, with 2 to 4 guttules. The genus Chaetosphaeria comes to mind for some species with spores splitting into part-spores, such as C. preussii, but I can find no suitable species in the literature, assuming that the pink staining is relevant.

I have attached images of the fruit bodies and the microscopy.

Does anyone have any idea as to the species?

Thank you,
Best wishes,
Peter.
  • message #23072
  • message #23072