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10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

09-09-2025 12:07

Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

08-09-2025 19:07

ruiz Jose

Hola me pasan esta recolecta en madera de fraxinus

03-09-2025 21:59

Philippe PELLICIER

La Léchère, Col de la Madeleine, alt 1970m, au s

06-09-2025 21:40

David Chapados David Chapados

Hi, Does somebody know the genus that has those b

07-09-2025 11:34

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I have identified this fungus as Hymenoscyph

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Orbilia cotoneastri?
Harald Homa, 08-10-2024 13:20
Harald HomaHello everyone!

Once again I came across an Orbilia and I would like to ask for help in identifying it


Place of discovery: Unbarked deciduous wood branch lying in the swamp in the dry inlet to the Loher Weiher pond on the Loher Tal loop (deciduous forest beech/oak plus floodplain woodland)
MTB: 5014,132 Date of discovery: 21/09/2024


Almost hyaline, yellow-isabellar-coloured fruiting body of approx. 800µm Ø, hymenium covered with a thin film;


Paraphyses cylindrical, mostly apically capitate; small, yellow-coloured globules visible in the basal area of the uppermost segment of the paraphyses; mostly
two septa in the basal area and there partly simply branched


Asci clavate, 8-spored, apically round or truncate, basally thinly elongated or h-shaped


Spores long-spindled, hyaline with barely recognisable, roundish spore body in the second third of the spores and some very small oil drops
5.9 [7.4 ; 8] 9.5 × 0.9 [1.2 ; 1.4] 1.7 µm
Q = 3.9 [5.6 ; 6.4] 8.1 ; N = 31 ; C = 95%
Me = 7.7 × 1.3 µm ; Qe = 6


In my identification attempt I ended up with Orbilia cotoneastri, but I am not convinced that this is correct.


I would be glad if someone could help me with the correct name of my find.


Best regards


Harald

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Hans-Otto Baral, 08-10-2024 17:46
Hans-Otto Baral
Re : Orbilia cotoneastri?
From the habitat I would consider O. luteorubella and O. rosea.

Regrettably your preparation shows only dead asci and spores. The spore body would be helpful, it should be very elongated, acute above, not globose as in O. cotoneastri.
Harald Homa, 08-10-2024 18:09
Harald Homa
Re : Orbilia cotoneastri?
It surprises me that the cells are dead, since I had prepared in water with addition of SDS.
At the moment I don't have the find or the microscope within reach, but I will contact you next week with new images that hopefully will help to clarify.

Thank you for the information and help


Best regards


Harald

Hans-Otto Baral, 09-10-2024 10:26
Hans-Otto Baral
Re : Orbilia cotoneastri?
SDS could be poisonous, I never tested.

Try pure water.