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18-02-2019 11:55

Elisabeth Stöckli

Bonjour, Sur mousse (tronc de Picea en décomposi

18-02-2019 19:45

Patrice TANCHAUD

Bonjour récolte sur épicéa, spores 62-83 x 3-3

18-02-2019 15:38

Savic Dragisa

Hi to all,I found today the branch of Ulmus sp. wi

18-02-2019 14:46

Riet van Oosten Riet van Oosten

Hello, Found by a mushroomfriend on Urtica. He ga

17-02-2019 22:45

BERNARD CLESSE BERNARD CLESSE

OK avec cette détermination ?Merci d'avance pour

17-02-2019 23:17

Blasco Rafael Blasco Rafael

Hola, he recogido esta muestra sobre la corteza de

17-02-2019 11:50

Blasco Rafael Blasco Rafael

Hola, alguno de Ustedes dispone del siguiente Arti

16-02-2019 17:02

Per Marstad Per Marstad

I found this on desiduous wood, in Norway.Diameter

01-02-2019 14:37

Lothar Krieglsteiner Lothar Krieglsteiner

.. collected at 22.12.2013, Portugal, Algarve, nat

15-02-2019 20:44

Edvin Johannesen Edvin Johannesen

Hi! These black, semi-immersed/erumpent apothecio

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Stromata on Phragmites
Eduard Osieck, 07-02-2019 20:14
Does any body recognise these rather large stromata (length up to 0.5 cm, note the scale bars) found on Phragmites stems?

Unfortunately no spores or conidia yet (after one month).

Van Ryckegem (Phragmites PhD) mentions two species with such rather large blackish stroma: Apiospora montagnei and Wettsteinina moniliformis. Unfortunately, I couldn't find any sharp detailed stroma photos of these, so I have no idea whether it is one of these or something else. I have assumed that Lophiostoma arundinaceum has much smaller stromata (although I failed to find any size indications).

Help appreciated!

Eduard
  • message #56205
  • message #56205
Pintos Angel, 07-02-2019 20:41
Pintos Angel
Re : Stromata on Phragmites
Hi Eduard,
have you considered it to be a dry specimen of Puccinia sp?
Regards
Angel
Irmgard Krisai-Greilhuber, 10-02-2019 10:33
Re : Stromata on Phragmites
Dear Eduard,

it is a pity that it is immature. The stromata remind me of Scirrhia rimosa. Please compare with it. Best, Irmgard
Peter Püwert, 10-02-2019 13:35
Peter Püwert
Re : Stromata on Phragmites
Hi Eduard,

I agree with Irmgard. It's difficult, to find asci and spores.

Greetings Peter. 
  • message #56219
  • message #56219
Eduard Osieck, 11-02-2019 21:28
Re : Stromata on Phragmites
Thanks to all for the reactions. I guess Scirrhia rimosa is a very good match. I know Puccinia phragmites from the same site and substrate but it is quite different. Photos of the outside and the inside of Scirrhia rimosa of Peter and on the Internet are very similar to my collection. Strikingly this species was not found during the Phragmites study of Van Ryckegem (in Flanders and SW. Netherlands).

Thanks again for the help, Eduard