07-06-2025 15:39
Edvin Johannesen
A friend sent me a few Betula seeds with tiny blac
04-06-2025 15:10
Stefan JakobssonHi forum, On a herbaceous stem, possibly Aegopodi
03-06-2025 20:52
Stefan BlaserHello everybody, I didn't get anywhere with this
20-05-2025 22:15
Francois Guay
I found this ascomycete at the base of a dead fern
30-05-2025 17:54
Louis DENYHello forum!Touvé près de Belfort, altitude 350m
31-05-2025 00:51
Ethan CrensonHello, Last week in New York City this Orbilia wa
Dear friends:Have you some idea about this strange roundish, densely gregarious,
uniperitheciate pyrenomycete, up to 0.7-0.8 microns in diam, covered by a
conspicuous white material? It was collected on the underside of a woody piece
(perhaps Salix).
The asci have a little refringent apparatus IKI and Melzer negative and the ascospores
(2-guttulate in H2O) have any germ slit (or it is very inconspicuous).
When I began to study it, my material was very damaged and for it I cannot do a good description but I see any dark peridial setae of Coniochaeta-type
Many thanks again
Enrique
I agree with you this likely a Coniochaeta. They don't all have conspicuous setae, you should check the ostiolar region in a crush mount, you may find small setae.
Regarding a possible species name I have no idea! Maybe Andy?
Good luck!
Jacques
But the spores have not conspicuous germ-slits as the typical Coniochaeta species!
I can't to study more the perithecia because they are dead
Andy
Peter
your species reminds me somewhat of Boliniaceae, especially if you look at the spores on the left site (2guttulate, as you described). Arrangement in Asci is similar to that in C. microspora, for example. Only the apical apparatus does not fit to "Camarops". I do not know Boliniaceae very well but I think you should look there.
regards,
björn
Andy
regards,
björn
Andy
cheers