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Mot de passe perdu? S'inscrire

13-01-2026 07:28

Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

13-01-2026 10:13

Danny Newman Danny Newman

Cordieritidaceae sp. on indet. wood w/ Hypoxylon s

13-01-2026 07:14

Danny Newman Danny Newman

Neodasyscypha cerina on indet decorticate logThe S

13-01-2026 09:10

Danny Newman Danny Newman

Dasyscyphella chrysotexta on indet. decorticate ha

13-01-2026 08:43

Danny Newman Danny Newman

Tricladium varicosporioides on indet. decorticate

13-01-2026 08:49

Danny Newman Danny Newman

Coccomyces sp. on fallen Rhododendron leavesPretty

12-01-2026 22:02

Ethan Crenson

Hello all, I am hoping someone will have some ins

13-01-2026 07:57

Danny Newman Danny Newman

cf. Bombardia on indet. decorticate woodAppalachia

13-01-2026 07:51

Danny Newman Danny Newman

Atrocalyx sp. on indet. herbaceous stemAppalachian

11-01-2026 20:35

Josep Torres Josep Torres

Hello.A very tiny pyrenomycete sprouting sparsely

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A non-lichenised fungus?
Jennifer Fiorentino, 28-07-2021 15:26
Would be very happy to receive your opinion on this. I examined the fruiting bodies of this fungus thinking it was a lichen as there seems to be a greyish white thallus present. It was growing on the bark of an old, coastal carob tree in the Mediterranean. The black fruiting bodies were between 0.1 - 0.3mm diameter. A TS revealed a hymenium of about 110um height and a dark hypothecium. The 3- septate spores were dark reddish-brown, 23-32 x 9 -16um. Too long and wide to fit any Diplotomma/Buellia Mediterranean lichen species I know of. Would this be a non-lichenised fungus? Many thanks in advance.
  • message #69649
  • message #69649
  • message #69649
  • message #69649
Hermann Voglmayr, 30-07-2021 11:23
Hermann Voglmayr
Re : A non-lichenised fungus?
Dear Jennifer,
compare with Stigmatodiscus - see the following freely available publications:
https://doi.org/10.1007/s13225-016-0356-y
https://doi.org/10.1007/s11557-018-1435-0
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5788271/

I do not see any gel sheath surrounding the ascospores in your pics which are diagnostic for Stigmatodiscus - but this may be due to the fact that the ascospores illustrated are very old and dead, and probably also due to the slide preparation/mounting medium.

Concerning spore measurements and shape, this could be Stigmatodiscus oculatus, but one would need more clear pics of the ascomata, a thinner section of the ascomata and more detailed pictures of living ascospores to evaluate the gel sheath and septation.

Best,
Hermann

Jennifer Fiorentino, 05-12-2021 16:02
Re : A non-lichenised fungus?
A belated thanks for your comment. Will check my specimen in line with your suggestion. So sorry to have missed it way back in July. My apologies.