21-03-2026 15:13
Lepista ZacariasHello everyone, Does any one know of any literatu
20-10-2017 09:23
Garcia SusanaEste otro crecía en el mismo trocito de madera qu
20-03-2026 16:16
Edvin Johannesen
These 0.5 mm diam. acervuli were breaking through
19-03-2026 19:34
Filip Fuljer
Hello everyone,a few days ago I collected this str
19-03-2026 18:25
William Slosse
Good evening everyone, On 18/03/26 I found a few
17-03-2026 10:09
François Freléchoux
Bonjour, Voici la description rapide d'un petit d
19-03-2026 17:50
Enrique Rubio
Hi to everybodyThese thiny, blackish pseudothecia
HiFound on fallen ulmus twigs. Dont know if its lichenicolous or if it grows on ulmus. But it seams that it will appear were lecanora is present. Ebr />Spores 26-30x 12-14um with epispor 4-5 um wide old Spores verrucose light brown.
Asci 125-145x 15-17 um
Asci lugol negative K+I negative
Asci 8 spored
Parafyses septate
Involucrellum react K+green
Anyone have seen anything like it or knows genus?
i have tryed some keys with no match.
All the best,
Robin
Hallo Robin,
to me (as a lichenologist) the ascomata look like to belong to a saprophytic fungus
the lichen seems to be (almost) dead overgrown in some parts by colonies of epiphytic green (non-symbiotic) algae
what suggests the branch (and the lichen) is dead for relatively long period
lichenicoles are also usually much smaller
I must say that I am not the expert at all but tried to pass through some literature and older discussion on this forum
one of the candidates could be Dothidotthia ramulicola ?
discussed on the forum 6 years ago: see: "
http://www.ascofrance.com/forum/26773/didymosphaeria
the discussed specimen is at least seemingly slightly similar to yours, which could be immature? as noted in the discussion by Walter Jaklitsch for this taxon?
but maybe I am completely wrong, better to ask an expert on bitunicate pyrenomycetes
according to the description in the monograph by Barr (1989) in Mycotaxon this species should form gregarious ascomata on a stroma
perhaps the mentioned taxon is a dustbin name ?
all the best
Zdenek
Thank you for the replay and your effort to find a candidtae.
As you say we could exclude lichenicoles, I will ask Walter to se if it is the species you named but as it seams it is only pertecia one by one and no gregarious ascomata on a stroma but i will cut and look closer on material when i home.
All the best,
Robin