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14-06-2025 13:28

Richard VALERI Richard VALERI

Bonjour à tous.Trouvé au sol, longuement résupi

13-06-2025 16:34

Andgelo Mombert Andgelo Mombert

Bonjour,Un petit discomycète qui me résiste. Il

13-06-2025 19:57

Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y avellanosEjemplar uni

12-06-2025 19:36

Rodríguez Borja Rodríguez Borja

Hi, I have got this collection hoping you can giv

13-06-2025 09:41

Josep Torres Josep Torres

Hello.A cerebriform ascomycete sprouting scattered

12-06-2025 15:53

Viktorie Halasu Viktorie Halasu

Hello, I keep finding something with spores like

12-06-2025 08:58

Josep Torres Josep Torres

Hello.Some synnemata sprouting in a scattered but

12-06-2025 19:26

Charles Aron Charles Aron

Hi All, Recently I found this minute Bryoscyphus

12-06-2025 13:04

Angel Pintos Angel Pintos

Hi, does anyone have the following article: Tibel

11-06-2025 13:44

Nicolas Suberbielle Nicolas Suberbielle

Bonjour,J'ai trouvé cette espèce aux alentours d

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Rutstroemia ... maritima?
Maria Plekkenpol, 11-01-2021 20:41
Hello, first of all I wish everyone a healthy and peaceful 2021!
Someone on the FB group of Dutch mycology found these Rutstroemia (Lenneke Roozen). She lives on one of our islands and the substrate is Ammophila arenaria.
Spores av 14-17 x 5-7, filled with little droplets, some younger spores (?) with two droplets. Paraphyses filled, septated and with hardly broadened apex.
Asci 140-150 x 9,5-12.5, J+. Clear croziers?? (I read former topics, so I am not sure???)
Amyloid (see photo of "blue" spore)?
But reading the former topics (and finding hardly any further information about R. maritima) I don't know if it is possible to be sure ..... ???
Greetings, Maria
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Hans-Otto Baral, 11-01-2021 21:52
Hans-Otto Baral
Re : Rutstroemia ... maritima?
Clear croziers! Despite the substrates I am reluctant with R. maritima. It will be difficult to find a morphological character to separate this from R. calopus. But you are right, my maritima folder contains both IKI- and IKI+. I fear this matter is far from being solved.
Maria Plekkenpol, 12-01-2021 18:38
Re : Rutstroemia ... maritima?
Hello Zotto,
Thank you for your fast reply! I already feared this hahaha. But: maybe there will be some discovery in the future, whatever the outcome will be.
One last question: R. maritima can not be said, but is it correct to say that it's either R. maritima or R. calopus? Or are there even more candidates?
Thank you, Maria
Hans-Otto Baral, 12-01-2021 20:11
Hans-Otto Baral
Re : Rutstroemia ... maritima?
There can be more. This is a difficult complex, with various names, some of them only known from DNA isolates because these species are parasites of grasses. The old names need to be epitypified which needs a thorough study.

I must correct myself, Dennis (1964: 52) reported for authentic material of R. maritima an amyloid ascus apex, though with a moderate apical thickening.

The clade Clarireedia is the home of these parasites, so some use that name instead of Rutstroemia.
Maria Plekkenpol, 12-01-2021 20:47
Re : Rutstroemia ... maritima?
Rutstroemia sp it is for now :)! 
Better to know that sometimes things are not sure yet, then naming something without a solid base. That's how I see it anyway. 
Thank you Zotto!