19-05-2026 10:27
Patrice TANCHAUDBonjour, récolte récente sur terre retournée i
19-05-2026 12:55
Hardware Tony
After checking Gminder and Otto's library I cannot
18-05-2026 12:43
Sylvie Le GoffBonjour à tousPuis je avoir votre aide sur ce que
19-05-2026 14:56
Åge OterhalsI found this white cushion-formed ascomycete on ro
18-05-2026 10:13
Lieve Deceuninck
Dear forum members,I identified this as the teleom
17-05-2026 19:05
Thomas FlammerI have found this tiny 200 ym cup shaped apothecia
17-05-2026 16:41
Margot en Geert VullingsWe found this Lachnum on an old Rubus stem.Fruitbo
05-04-2026 22:46
Lothar Krieglsteiner
on wood of Ceratonia, Algarve, 3.4.2026.The color
Karstenia chrysophaea? - from Portugal
Lothar Krieglsteiner,
29-04-2026 08:01
... on twig attached to small tree of Citrus aurantius, together with Clonostachys ralfsii (det. A. Gardienet). As the few apothecia (only seen after water-addition) were growing in an algal mat they could well be lichenised (without having evidence for this).
I think it must be a Karstenia and I do not find a better species than chrysophaea.
The spores have up to 11 septa and are about 40-55/3,5-4,5 µm large, with both ends pointed.
Who can help?
Best regards, Lothar
Hans-Otto Baral,
29-04-2026 08:38
Re : Karstenia chrysophaea? - from Portugal
This may well be a Karstenia, but I would like to see the periphysoids on the inner margin. The apos are small, but only a median section would show them. Examples of sections with periphysoids are many in my Karstenia folder.
Zdenek Palice,
29-04-2026 09:11
Re : Karstenia chrysophaea? - from Portugal
The ascospores appear distinctly halonate on some photos - this could be what lichenologists used to call Ramonia subsphaeroides (Tav.) Vezda which should have spore sizes of more or less of the same size as Karstenia chrysophaea auct.
see e.g. the photo of the species in the paper by Frisch et al. 2020
Lothar Krieglsteiner,
29-04-2026 10:06
Re : Karstenia chrysophaea? - from Portugal
Hello Zotto,
thanks for your reply. I will not be easy to do this with the ramaining material but I will try.
The link to your site does not work any more at my laptop. Could you once again send the (new?) link?
Lothar
thanks for your reply. I will not be easy to do this with the ramaining material but I will try.
The link to your site does not work any more at my laptop. Could you once again send the (new?) link?
Lothar
Lothar Krieglsteiner,
29-04-2026 10:07
Re : Karstenia chrysophaea? - from Portugal
Hello Zdenek,
thank you very much for your proposal that looks very good- I will try to compare more exactly. The "halo" of the spores was also noted by me.
Best regards, Lothar
thank you very much for your proposal that looks very good- I will try to compare more exactly. The "halo" of the spores was also noted by me.
Best regards, Lothar
Hans-Otto Baral,
29-04-2026 10:42
Re : Karstenia chrysophaea? - from Portugal
I now think I see a thallus around the apos.
My website is still out of order. Here is the link to the ascos:
Lothar Krieglsteiner,
29-04-2026 10:47
Re : Karstenia chrysophaea? - from Portugal
thank you, Zotto