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27-11-2025 15:41

Thomas Læssøe

Spores brownish, typically 4-celled; 26.8 x 2.4;

27-11-2025 12:01

Thomas Læssøe

https://svampe.databasen.org/observations/10496727

27-11-2025 11:46

Thomas Læssøe

https://svampe.databasen.org/observations/10493918

27-11-2025 11:31

Thomas Læssøe

Collectors notes: Immersed ascomata, erumpent thro

23-09-2025 13:31

Thomas Læssøe

https://svampe.databasen.org/observations/10534623

25-11-2025 14:24

Thomas Læssøe

https://svampe.databasen.org/observations/10490522

26-11-2025 18:13

Jason Karakehian Jason Karakehian

The entire run of Mycotaxon is now available throu

21-11-2025 15:22

Vasileios Kaounas Vasileios Kaounas

Found in moss, forest with Pinus halepensis. Dime

24-11-2025 18:17

ruiz Jose

Hola en madera, quizás de alnus. Esporas(12.1) 12

25-11-2025 11:03

Mick Peerdeman

Hi all,One of my earliest microscopy attempts, so

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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