02-03-2017 21:17
Lepista ZacariasDear all,I'm again in trouble to classify specimen
18-03-2017 12:20
Peter ThompsonHello Everyone,I have been considering a black asc
17-03-2017 21:06
Enrique Rubio
HI againBlackish, not setose pseudothecia up to 0.
17-03-2017 01:57
Roland LabbéBonjour !Voici un discomycète inconnu de nous.Il
16-03-2017 23:55
Lepista ZacariasHi everyone,Recently I posted here a topic with a
17-03-2017 09:46
Eduard OsieckCan somebody provide a copy of the paper "Pilobolu
17-03-2017 18:50
Per VetlesenHiIt was found on bark of Juniperus communis in Ha
Chaetosphaerella ?
Ethan Crenson,
11-04-2019 06:53
From New York City last weekend, growing on an old Pyrenomycete (Eutypa, probably) I think this is Chaetosphaerella. The small clusters of black fruiting bodies seem somewhat flattened at the apex. They are seated in a dense brown subiculum. I did not see any asci in any of my mounts. Spores are 3-septate, brown with hyaline end cells and guttules in the two inner cells, usually curved. They measured 24-29 x 6-7µm. I'm uncertain if I saw any conidia-- in the final photo there is a bowling-pin shaped brown cell that has two guttules.
Could this be C. fusca or C. phaeostroma? Does the difference come down to the conidia?
Thank you in advance for your help.
Andrew N. Miller,
11-04-2019 14:45
Re : Chaetosphaerella ?
This is C. fusca. The difference is whether or not the ascomata become collabent and the size of the ascospores (longer in C. phaeostroma).
https://www-s.life.illinois.edu/pyrenos/records/show_by_page?page=24
Andy
https://www-s.life.illinois.edu/pyrenos/records/show_by_page?page=24
Andy
Ethan Crenson,
11-04-2019 17:26
Re : Chaetosphaerella ?
Andy, thank you for your help!