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Mot de passe perdu?

09-04-2026 15:25

Slerotinia verrucispora ???

Jac Gelderblom

On bare soil between mosses Ifound an asco I deter

09-04-2026 13:55

Small-spored "Diplodia" on broom (Cytisus scoparius) - Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10589176

09-04-2026 10:12

Melanosporalian on attached decayed wood on fallen Carpinus, Denmark - very long-necked

Thomas Læssøe

https://svampe.databasen.org/observations/10587061

08-04-2026 20:33

Gyromitra sp. ?

Vasileios Kaounas

Vasileios Kaounas

Found 07-04-26, in Abies cephalonica. Diameter 1,

08-04-2026 10:39

Littérature Korf

FRANCIS FOUCHIER

Bonjour , je recherche en pdf cet article: KORF R

06-04-2026 15:04

David Chapados

David Chapados

Hi! Could someone help me identifying this specim

29-06-2016 15:18

Per Vetlesen

HiIt was found on the bark of a dead branch of Jun

07-01-2018 22:47

Per Vetlesen

Grown in moist chamber on bark/resin of fallen Pin

06-04-2026 21:36

Literature search

Viktorie Halasu

Viktorie Halasu

Hello, could anyone please send me the article wi

06-04-2026 19:40

Nectriaceae on Fagus

David Gibbs

David Gibbs

Help with this one much appreciated, on rotting Fa

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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

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