Accès membres

Mot de passe perdu? S'inscrire

17-01-2026 19:35

Cosmospora aurantiicola: Gibt es dazu Literatur ?
Arnold Büschlen

Hallo, ich suche zu Cosmospora aurantiicola Lite

15-01-2026 15:55

pyrenomycete on Quercus
Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

16-01-2026 00:45

Hyphodiscus (?) on hardwood, hemiamyloid, staining reddish-orange
Ethan Crenson

Hi all, On decorticated hardwood from a New York

18-01-2026 12:24

Anamorph on an olive tree
Josep Torres Josep Torres

Hello.An anamorph located on the surface of a thin

17-01-2026 10:41

Pulvinula
Blasco Rafael Blasco Rafael

Hola, he descubierto que he creado una Pulvinula t

08-12-2025 17:37

possibly related to Melanomma - on Abies
Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

16-01-2026 11:20

Una para ID
Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) 

10-01-2026 20:00

Lichenicolous fungus on Protoparmeliopsis muralis
Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

13-01-2026 07:28

Chlorociboria glauca on indet. decorticate hardwood log - 303627368
Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

15-01-2026 10:35

Hyphomycete ?
Johan Boonefaes Johan Boonefaes

Last week I found this fungus, possibly a hyphomyc

« < 1 2 3 4 5 > »
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
  • message #55914
  • message #55914
  • message #55914
  • message #55914
  • message #55914
  • message #55914
  • message #55914
  • message #55914
Andrew N. Miller, 15-01-2019 19:26
Andrew N. Miller
Re : Acanthostigma multiseptatum ?
Looks right to me!  

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
Andrew N. Miller
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