13-08-2024 17:20
Lothar Krieglsteiner
.. a collection from 19.3.2008, Hessen, Germany, o
04-08-2024 19:30
Lothar Krieglsteiner
French Alps, on Corylus, together with Orbilia tra
22-04-2024 20:38
Miguel Ángel Ribes
Good afternoon.Does anyone know this anamorph?It g
12-08-2024 09:28
Miguel Ángel Ribes
Good morning This small (about 1 mm wide), stalke
05-08-2024 14:32
Miguel Ángel Ribes
Good morning This orange-brown Ciboria or Moeller
06-08-2024 19:15
Blasco Rafael
Hola, esta especie lleva dos años saliendo en res
07-08-2024 18:24
François BartholomeeusenDear forum members,On the discoloured leaf lesions
06-08-2024 12:38
Miguel Ángel Ribes
Good morningThis small (< 1.5 mm diameter) whit
Rustroemia firma?
VASILEIOS KAOUNAS,
09-12-2008 07:15
Ascospores 19,3-23,0*4,4-4,9 ìm, Q=4,4-5,0
Hans-Otto Baral,
09-12-2008 13:44
Re:Rustroemia firma?
Dear Vasileios
that is a good question. R. firma has wider spores (*15-20 x 5-6.5 µm). Yours look too narrow (though alive), so I don't think it is R. firma. Could you search for overmature spores, do they get 3 septa? Probably they procude small conidia like typical R. firma. You could also look for the excipulum, is it of thin-walled prismatic cells or gelatinised?
Asci are probably strongly blue in IKI and with croziers, but this should also be checked.
Zotto
that is a good question. R. firma has wider spores (*15-20 x 5-6.5 µm). Yours look too narrow (though alive), so I don't think it is R. firma. Could you search for overmature spores, do they get 3 septa? Probably they procude small conidia like typical R. firma. You could also look for the excipulum, is it of thin-walled prismatic cells or gelatinised?
Asci are probably strongly blue in IKI and with croziers, but this should also be checked.
Zotto

