
19-10-2025 18:58

Bonsoir à toutes et tous,Il y a un peu plus de de

19-10-2025 14:10
Camille MertensBonjour à tous.Asco stipité 1mm de texture appar

17-10-2025 18:45

Hello, Found by Laurens van der Linde, Oct. 2025.

23-09-2025 13:31
Thomas Læssøehttps://svampe.databasen.org/observations/10534623

15-10-2025 16:39

These tiny (0.2-0.6 mm), white, pulvinate apotheci

03-10-2025 13:44

Hello, Found by Laurens van der Linde on Populus

13-10-2025 19:05
Louis DENYBonjour forumSur tronc décortiqué de feuillu x,

11-10-2025 20:27

Found on a barked branch, 14 mm in diameter, of Ro
Hello all,
I am running a spore trap (Burkhard) in a forest in the southeast of England and am having difficulty identifying some (or many!) of the spores.
I was wondering if anyone recognizes the ones in the photos? They are very distinct, long (some 100um) and seem to be trapped on a rainy day in middle of June after a long dry period. Unfortunately nothing is known about the fruiting body.
Does anyone have any ideas??
Many thanks,
Martin

this reminds me of ascospores of Ophiobolus, üartly broken in two parts, with one cell inflated in the middle.
Zotto

Hi Martin,
This is almost certainly Ophiobolus acuminatus. I the middle of the constricted (Fig. 2 middle), and it thickened spores are typical for this species.
Peter
Yes it is Ophiobolus, it fits perfectly!! Thank you very much for your help!
Can I ask if you think this new photo is a Fusarium species? It reminds me of Fusarium with a sort of 'heel cell' but it doesn't seem quite right.
Thanks again for your help!
Martin

sorry I can't. But a question: do you always kill the spores that you trap? I think they will not run away if you use tap water instead.
But without joking: I recognize species much easier when the spores are alive, when I see the guttules inside etc. And they are well visible on photos without staining.
Zotto
Yes you are right, they shouldn't run away! But sometimes they do germinate before I am able to have a look at them. But maybe I will be kinder and not kill them straight away in the future :)
Thanks,
Martin