15-11-2025 23:22
Mario FilippaHello,this is what I think to be Hymenoscyphus mac
14-11-2025 16:26
Marian Jagers
Hello everyone, On dead wood of Cytisus scoparius
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
12-11-2025 09:25
Viktorie Halasu
Hello, I need help with a pale terrestric Pseudom
11-11-2025 20:16
Bohan JiaHi, lastly I have found these tiny yellow decayin
09-11-2025 13:20
Josep Torres
Hello.A tiny ascomycete, appearing as erupting gra
I collected this ascomycete growing on hardwood.
Size apothecia to 800um diameter
Asci are octosporicas, 45-55 x 13-17um
The spores are finely ornamented with warts.
I think it may be Dactylospora, but I have no information.
Any idea?
Thank you, greetings
Susana
clearly a Dactylospora but I have never seen such broad spores which exclude D. stygia.
Zotto
your find could probably fit to D. aeruginosa which grows on lichen but also saprobic on wood. See attached paper with a key.
Regards
Martin
Ihlen-etal-2004-Dactylospora-0002.pdf
Also I did not notice a warted spore surface in the description, though this might easily be overlooked.
Zotto
it might be not that easy! Hafellner 1979 (Karschia) has 9 Dactylospora species on wood (including var.s) but of course not mentioning aeruginosa, that was errected by Holien&Ihlen 2004 and not taken in synonomy with a previous known species.
The closest match in Hafellner's work is D. bloxamii.
@Susana: did you observe branched paraphyses? It is not clear from your last picture.
Regards
Martin
I send photo in water.
The paraphyses are difficult to see clearly, but I think they are not branched.
I also think that the species should be indicate in their description the presence of spore ornamentation.
regards
Susana
yes, D. bloxamii should show a slightly "folded" ornamentation (see attached picture from Hafellner). It is visible under immersion only he writes. The other features fit quite well.
regards
Martin
Zotto
If as you say adjusts to the definition of the species I file as D. bloxamii
regards
Susana
I would be satisfied when seeing the ornamentation since I never saw this species myself. Did you observe the spores with the 100x under immersion?
Best regards
Martin
Water photo reveals spores irregular shape because of small warts. Focusing and defocusing, get to see some small surface spots. Photographing this ornamentation is a real problem for me (I use a compact on the ocular without support), submit a photo that I think that ornamentation is sensed.
regards
as you can see in the attached key of Hafellner, a warty ornamentation would lead to another species (verruculosa) but with smaller spores. If you have the same slide, now dried up a little and now thinner, try to observe it again.
Martin
Update: I just realized that Hafellner accepts in his key unsculptured spores but with other features matching for bloxamii. So I suggest as well to file your find as D. bloxamii.
regards
Susana