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11-03-2026 17:36

Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

11-03-2026 16:48

Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

11-03-2026 14:14

Gernot Friebes

Hi,I would like to share a collection of Scopinell

15-09-2020 17:27

Andgelo Mombert Andgelo Mombert

Bonjour, Sur branche morte décortiquée de Berbe

10-03-2026 18:08

Marc Detollenaere Marc Detollenaere

Dear Forum,On stems of Arctium, I found some downy

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

07-03-2026 13:06

éric ROMERO éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

23-12-2025 08:27

Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

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Bit at a loss: Cyathicula?
Maria Plekkenpol, 06-08-2023 10:26
Maria PlekkenpolHello,
On a small twig of probably Betula there were these cups with short thick stem. Fb small, 1,3 mm, stem 0,4 mm. Brown with ochre hymenium, outside looking fibrillose/hairy. Asci cylindrical, 90-115 x 7-10,5, 8 spored (biserial). Croziers +, IKI +. Cristals (?) at base of quite a few asci. Paraphyses slightly longer than asci, slender without capitate apex. Textura porrecta (I think?), endhyphae brown and very incrustated. Spores allantoid, almost bacilliform: 12,3-14,4-16,6 x 3-3,3-3,6.
Q= 3,7-4,4-5. Very little content within spores, no clear/bigger guttules. 
I can't find a match within either Rutstroemia nor Cyathicula (which in the Netherlands they call Crocicreas). Does any of you have an idea? Thanks already! 
Maria
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Hans-Otto Baral, 06-08-2023 12:01
Hans-Otto Baral
Re : Bit at a loss: Cyathicula?
Interesting! This is a member of the Rutstroemia tiliacea group. There is little consense about the species concept and host specificity. Available sequences from different substrates are very similar to each other.

I have a folder which also includes a subfolder Betula, a collection by M.A. Ribes.


Where did you find this? Is it collected from yesterday?
Maria Plekkenpol, 06-08-2023 12:30
Maria Plekkenpol
Re : Bit at a loss: Cyathicula?
Thanks for the reply Zotto. My friend found it when we were in an area on clay, at the bank of a sand quarry. Trees there were Betula, Salix and Crataegus. That was last Friday.

https://www.google.com/maps/@51.8679207,6.3353405,222m/data=!3m1!1e3?entry=ttu

If you copy the link you can see it. It is the part left of the little building (left on the image). I can't open the folder alas. Can you tell a little bit more about this or do you have another paper?

Greetings, Maria
Hans-Otto Baral, 06-08-2023 17:25
Hans-Otto Baral
Re : Bit at a loss: Cyathicula?
My link does not work?

You can try starting here:


Go Ascomycetes illustrations, copy link and go to Ascomycetes.

Helotiales. Not sure if the sorting is after the alphabet.

There is an article about R. punicae. It is Peric & Baral, Mycol. Monten. XX, 2017 (2019): 167-189

TWO SPECIES OF THE GENUS RUTSTROEMIA
(RUTSTROEMIACEAE, HELOTIALES) NEW FOR MONTENEGRO:
R. FRUTICETI AND R. PUNICAE SP. NOV

I can send you by mail
Maria Plekkenpol, 06-08-2023 20:08
Maria Plekkenpol
Re : Bit at a loss: Cyathicula?
Thanks!! I downloaded and read the article, very interesting!!
As you know I am really an amateur, but from what I read R. punicae comes closest to my find. 
So forgive me the following questions:
- Is it possible to already assume that it is R. punicae?
- Would you like me to send material?

If you want me to send material, please mail me the adress on m.plekkenpol@emhg.nl. Then I will send it tomorrow.
Thanks for your time and greetings,
Maria
Hans-Otto Baral, 06-08-2023 21:33
Hans-Otto Baral
Re : Bit at a loss: Cyathicula?
I am sorry I have no time for study. But my suggestion is to send a portion for sequencing the ITS. If you do not know anyone, I suggest Kadri Pärtel from Estonia, she might be interested (I can ask her).
Maria Plekkenpol, 07-08-2023 07:33
Maria Plekkenpol
Re : Bit at a loss: Cyathicula?
Please do and if she is interested I will send it to her.
She can email me her adress then. Thanks for all the help again!
Greetings, Maria