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20-12-2025 10:49

Mirek Gryc

Hi. „I doubt it is possible to identify this ti

23-12-2025 08:27

Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

23-12-2025 11:27

Louis DENY

bonjour forum,sur débris de bois de feuillu (acer

21-12-2025 09:32

Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

21-12-2025 21:32

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

22-12-2025 23:38

Patrice TANCHAUD

Bonsoir, récolte sur un mur en pierre, apothéci

21-12-2025 12:34

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

22-12-2025 00:47

Patrice TANCHAUD

Bonsoir, récolte à proximité du milieu dunaire

21-12-2025 21:40

Isabelle Charissou

Bonjour, j'aimerais connaitre les références de

20-12-2025 23:08

Patrice TANCHAUD

Bonsoir, récolte sur sol sablonneux dans l'arriÃ

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On Rhamnus frangula
Aafke Buijs, 21-07-2015 17:09
Hello,

Found these partly immersed black fruitbodies on wet twig of Rhamnus frangula, some solitair, most of them in small groups on a black underground (under the bark).
Asci with 6-8 spores, about 120, with thick walls and gelatinous content between the spores, as it looks to me.
Spores colourless when young and brownish when mature. Mature spores 20-23/7-9.
Mature spores with 3, but mostly more, transverse and longitudinal septa, different from the description and the picture in Ellis & Ellis.

Could this still be Karstenula rhodostoma ?

Greetings, Aafke
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Jaklitsch Walter, 21-07-2015 20:40
Re : On Rhamnus frangula
This is Cucurbitaria rhamni. I am presently working on Cucurbitaria. If you want you can send me some material.
Best regards, Walter
Aafke Buijs, 21-07-2015 21:46
Re : On Rhamnus frangula
Hi Walter,

Of course, that's it ! Strangely I did look for Frangula instead of Rhamnus in the book of Ellis. Must be the warmth !
Thanks.
Could you give me your address by email in order to provide you with the rest of my finding ?

Regards,
Aafke