11-03-2026 17:36
Michel Hairaud
Bonjour, Je cherche des indices pour cette réc
11-03-2026 16:48
Bruno Coué
Bonjour, je serais heureux d'avoir votre avis sur
11-03-2026 14:14
Gernot FriebesHi,I would like to share a collection of Scopinell
10-03-2026 18:08
Marc Detollenaere
Dear Forum,On stems of Arctium, I found some downy
05-03-2026 10:07
Hulda Caroline HolteHello, I found and collected this species growing
07-03-2026 13:06
éric ROMERO
Bonjour tous, Sur cône d'épicea fortement imbu,
Acanthostigma multiseptatum ?
Ethan Crenson,
15-01-2019 17:32
Hello,
In the Bronx, New York City last Saturday I found these setose superficial pyrenomycetes on a branch of hardwood. I think they are Acanthostigma multiseptatum, mostly based on spore features. I used the paper by Andy Miller and Itthayakorn Promputtha (2010) to reach this tentative ID.
The hairs are brown measuring 86-112 x 5µm. Asci bitunicate and IKI-, 111-116 x 17-24µm. Spores multiseptate measuring 84-89 x 7.5-9.9µm. I counted up to 14 septa, the spore slightly constricted at some of the septa.
The description in the Miller/Promputtha paper says the spores should not be constricted at the septa, but the length/width seem to fit and other features seem mostly within range. Am I correct that this is A. multiseptatum, or am I mistaken?
Thanks in advance.
Ethan
Andrew N. Miller,
15-01-2019 19:26
Re : Acanthostigma multiseptatum ?
Looks right to me!
Great find!
Andy
Great find!
Andy
Ethan Crenson,
16-01-2019 16:00
Re : Acanthostigma multiseptatum ?
Thanks Andy! By the way, if you don't mind I'd like to contact you by email about a (sort of) related matter.
Andrew N. Miller,
16-01-2019 17:35
Re : Acanthostigma multiseptatum ?
Sure thing. amiller7@illinois.edu
If you have sufficient material, we should try to sequence this collection... or maybe even culture it.
Cheers,
Andy
If you have sufficient material, we should try to sequence this collection... or maybe even culture it.
Cheers,
Andy