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23-03-2025 12:01

Thierry Blondelle Thierry Blondelle

Bonjour à tous,Ce sont de petits coussinets blanc

24-03-2025 14:58

Karl Soler Kinnerbäck

Hi,Dark, erumpent disco on Vaccinium myrtillus, ce

24-03-2025 16:20

Henri Koskinen

I found this very small Elaphomyces on a wet almos

23-03-2025 19:56

Bruno Coué Bruno Coué

Récolte du 06/03/2025, dans la forêt de la Combe

23-03-2025 20:27

Thomas Flammer

I have no idea where to startsubstrate: deciduous

19-03-2025 17:47

Philippe  Larue Philippe Larue

Bonjour à tous, chaque année à l'approche du p

23-03-2025 10:09

Michel Hairaud Michel Hairaud

Bonjour, Hi to everyone, The English text is avail

23-03-2025 01:00

Juuso Äikäs

These little black pyrenos were growing on bark of

20-03-2025 22:35

Yanick BOULANGER

BonsoirJ'ai récupéré cet ascomycète d'un amiJe

19-03-2025 09:29

Michel Hairaud Michel Hairaud

Bonjour, Récolté sur hépatiques colonisant un

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Teichospora? on Robinia pseudoacacia
William de Jong, 23-02-2022 18:55
Hi everyone,

I found an ascomycete on a twig of Robinia pseudoacacia with muriform spores (The Netherlands) together with the anamorf. Asci bitunicate. The few mature ascospores I found were 17-21 x 9 µm. Conidia avg 17,2 x 7,5 µm Q = 2,31; (13,7-)15,5-18,6(-20,0) x 6,5-8,5 (n=13).
According to the literature C. mirabellensis has ascospores with
So, I think thi is C. elongata. Am I right? A confirmation would be nice.

Best regards,
William de Jong

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Adam Polhorský, 24-02-2022 10:47
Re : Cucurbitaria elongata - Camarosporidiella elongata on Robinia pseudoacacia
Hello William,

This cannot be C.elongata, that is much larger fungus.

Is there a reddening around the ascomata and is the anamorph Phoma-like? Also is it associated with Diaporthe oncostoma?

Recently I've collected the same thing, I think it could be Teichospora, where I did not find a match. Perhaps species in Thyridariaceae and Cucurbitariaceae should be checked, but I did not find it in the recently investigated species. This suprised me, because it does not seem to be rare species.

Here I attach my docu and I am looking forward for any advice, I'm probably missing an obvious answer.


Adam
William de Jong, 24-02-2022 15:29
Re : Teichospora? on Robinia pseudoacacia
Hi Adam,

Thanks a lot for your response. I think I found C. elongata on another twig, see http://ascofrance.com/forum/71919/cucurbitaria-elongata-on-robinia-pseudoacacia 
This is indeed a big difference in size of the fruiting bodies. Thanks for pointing that out.

That's a wonderful documentation, very nice pictures! 

To answer your questions: I saw some reddening around the ascomata. And I found small conidia (3-4,5 x 1-1,5 µm). However, I didn't find Diaporthe oncostoma, yet.

I see that there are several Teichospora species which occur on Robinia: T.
hispida (which has setae on the fruiting body), T. trabicola, T.
mariae and T. pusilla.

Best regards, William


Adam Polhorský, 11-02-2025 11:25
Re : Teichospora? on Robinia pseudoacacia
Hi again William,

this should be Neodacampia ulmea. See also Alains find http://www.ascofrance.com/forum?page=1&id=9046

Adam