16-04-2019 15:09
Thomas LæssøeForm small pinki cushions on the surface - recall
16-04-2019 02:06
Ethan CrensonHello, Yesterday in New York City on Pinus strobu
14-04-2019 14:57
Edvin Johannesen
I am struggling a bit to identify this one. First
31-03-2019 23:48
Marc Detollenaere
Hi to all, I need your help for this brown sessil
15-04-2019 18:53
Andgelo Mombert
Bonsoir, Sur bois mort de feuillus. Apothécies
25-03-2019 08:12
Sava Krstic
Cups about 1 mm across, growing in large numbers o
05-02-2017 16:11
Malcolm Greaves
This specimen was found on the dead stems of grass
14-04-2019 18:01
Enrique Rubio
Hi to everybodyI am surprised with these semi-inme
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!