29-04-2026 08:01
Lothar Krieglsteiner
... on twig attached to small tree of Citrus auran
28-04-2026 22:51
Bernard CLESSE
Bonsoir à toutes et tous,Pourriez-vous m'aider à
28-04-2026 20:33
Vitus SchäfftleinHello, I found Trochila ilicina on Ilex aquifoliu
28-04-2026 21:50
Pablo Sandoval
Hola a todos,Espero se encuentren bien. Hace mucho
27-04-2026 18:05
Lothar Krieglsteiner
... still attached at standing tree. The green con
28-04-2026 20:07
Lothar Krieglsteiner
... on twig in the air at standing Ceratonia siliq
27-04-2026 20:52
Lothar Krieglsteiner
Found on hanging tiwg of Olea europaea in dried-ou
27-04-2026 18:48
Tony MoverleyCollected 23rd April 2026, Norfolk, EnglandSwarms
27-04-2026 17:41
Lothar Krieglsteiner
.. Algarve, same leaf than the last post. The con
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