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28-07-2025 04:59

Richard Droker

Growing on resin (over moss on Tsuga heterophyll)l

13-06-2025 09:41

Josep Torres Josep Torres

Hello.A cerebriform ascomycete sprouting scattered

13-06-2025 16:34

Andgelo Mombert Andgelo Mombert

Bonjour,Un petit discomycète qui me résiste. Il

24-07-2025 19:02

Castillo Joseba Castillo Joseba

De esta mañana en tronco caido de Haya A ver si

21-07-2025 19:22

Ethan Crenson

Hello all,  Here is an Orbilia found by a friend

14-07-2025 11:20

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

18-07-2025 23:03

Josep Torres Josep Torres

Hello.Fruitings between 51 and 130 microns in tota

17-07-2025 11:55

Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

15-07-2025 13:27

Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

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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