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22-08-2019 17:34

Stefan Blaser

Dear All, This collection from Fagus has globose

23-08-2019 07:46

Josep Torres Josep Torres

Hola.Un muy diminuto hongo creciendo sobre unas ho

22-08-2019 21:26

Castillo Joseba Castillo Joseba

Del pasado lunes  en tronca caido de fagusEstaba

21-08-2019 20:42

Simon Kennedy

As the historical records are no longer available

22-08-2019 18:35

Georges Greiff

Dear all,I have been going through herbarium speci

22-08-2019 16:24

Stefan Blaser

Dear All, The following collection looks similar

05-01-2019 14:57

Edvin Johannesen Edvin Johannesen

These orange "jelly"-like apothecia grow at the ap

21-08-2019 17:04

Mirek Gryc

Hello Grew among the roots of Phragmites.Fruitbod

21-08-2019 20:49

Joop van der Lee

I am looking for the following documentsMuroi, T.

21-08-2019 08:29

Tanja Böhning Tanja Böhning

Bonjour,   Encore un asco, que m´interesse, ma

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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!

  • 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?
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