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25-01-2026 23:23

Delitschia/Lojkania? on wood
Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

18-01-2026 12:24

Anamorph on an olive tree
Josep Torres Josep Torres

Hello.An anamorph located on the surface of a thin

25-01-2026 16:08

Geoglossum
Malcolm Greaves Malcolm Greaves

This Geoglossum had spores mostly 70-80 (87) with

23-01-2026 21:50

Looking for a paper please
Cameron DK

I am looking for this please publication. is anyon

10-01-2026 20:00

Lichenicolous fungus on Protoparmeliopsis muralis
Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

21-01-2026 19:55

Nemania aureolutea?
Bohan Jia

Hi,  Could this be Nemania aureolutea? Or did I

21-01-2026 16:32

Lichenicolous coelomycete
Gernot Friebes

Hi,I need your help with some black dots on a lich

21-01-2026 16:48

Hyphomycete on Rubus fruticosus agg.
Gernot Friebes

Hi,after my last unknown hyphomycete on this subst

20-01-2026 17:49

Mollisina acerina ?? Turbinate and hemiamyloid
Hardware Tony Hardware Tony

I offer this collection as a possibility only as e

15-01-2026 15:55

pyrenomycete on Quercus
Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

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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
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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