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28-01-2023 12:27

Juuso Äikäs

These were growing on a piece of thick Salix capre

27-01-2023 23:08


Bonsoir, récolte réalisée sur excréments ou p

27-01-2023 14:41

Juuso Äikäs

A couple days ago I found a plentiful growth of th

09-01-2023 14:08

Zoltan Lukacs Zoltan Lukacs

Anyone got an idea? It's immature material, but th

26-01-2023 15:23

Marja Pennanen

Hello forum. I collected some dark ones on Pinus

24-01-2023 19:53

ruiz Jose antonio

Hola,en restos de quemados,de unos 4 a 5 mm. Espor

24-01-2023 23:30

Josep Torres Josep Torres

Hola.Una Botryosphaeriaceae sobre la corteza de un

09-01-2023 08:14

Francisco  SÃNCHEZ Francisco SÁNCHEZ

Ascomiceto anaranjado sobre suelo desnudo, 29/12/2

23-01-2023 13:38

Castillo Joseba Castillo Joseba

Me mandan elo material seco de Galicia (España) r

16-01-2023 21:31

Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

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Acaroconium punctiforme?
Niek Schrier, 23-11-2022 21:14
hi everyone,

I found a lichenicolous fungi growing on Sarcogyne regularis. I think it is Acaroconium punctiforme (Kocourkova, J. & Hawksworth, D. L.;2008).

The Conidiomata pycnidia are arising on the apothecial discs and are 60-75 um in diameter, I did my best to make this visible on some photo's. The conidia are non-septate, somewhat irregular broadly ellipsoid, slightly pale brown with 1 or 2 guttules, measuring 5.5 - 6.8 x 3.2 - 4.0 um (n=8).

Can anyone confirm this is Acaroconium punctiforme?

Kind regards,
Niek Schrier

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  • message #74463
  • message #74463
Berger Franz, 23-11-2022 23:40
Re : Acaroconium punctiforme?
May be, but needs a thin cross section for firm identificatio! For judging the coniogenesis.  Could also be Microsphaeropsis
Try to get a Foto with CC (conidiogenous cells ) and conidiogenous unit (Conidium still attached on CC)  sometimes possible also in squash preparation. (Success rises also with squashing a hand cut section, Not only squashing a whole conidium). You need to do that also in Lichenconium or some Lichenodiplis!

This gheterogenetic group of phaeosporous coelomycetes can be quite  challenging!
All the best