28-04-2026 20:07
Lothar Krieglsteiner
... on twig in the air at standing Ceratonia siliq
04-05-2026 18:13
Stephen Martin Mifsud
ID request for what seems to be a true aquatic fun
04-05-2026 16:39
Stephen Martin Mifsud
ID request: This specimen was collected in Malta o
04-05-2026 09:50
Castillo Joseba
Me mandan el material seco de Galicia,(España) re
02-05-2026 12:42
Alain BRISSARDBonjour à tousJeuidi 30 avril dernier on m'a remi
02-05-2026 13:06
Pauline. PennaBonjour Please can someone help me with this id
01-05-2026 22:45
Thierry Blondelle
Bonjour à tous, Une récolte sur bouse séchée d
14-04-2026 05:32
Ethan CrensonHi all, A few weeks back a friend pointed out som
28-04-2026 20:33
Vitus SchäfftleinHello, I found Trochila ilicina on Ilex aquifoliu
KOH gave a striking pink reaction at upper leves of the hymenium
cheers
Thomas
ps on some apothecia this fungus co-occured with Pyrenochaete xanthoriae
Hi Thomas,
It fits well with Arthonia parietinaria. Epihymenium id K+ for this species, but K- for A. molendoi.
Thus, we know (since 2016 , Fleischhacker et al.), that A. parietinaria occurs on X. parietina when A. molendoi occurs more on X. elegans.
Alain
Hi Martin,
Yes I noted this strange colour. But A. destruens is not given on X. parietina. Thus ascospores are bigger.
It would be good to check the reaction with next collections of Arthonia parietinaria. If I find time, I will check with mines.
Thomas, please keep it in herbarium under Arthonia sp. cf A. parietinaria.
Alain