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23-07-2017 18:32

Steffen Lorenz

Hello,I found these conidia on Fagus sylvatica (a

24-07-2017 12:03

Castillo Joseba Castillo Joseba

Pensamos en Leotia y tambien en Coudoniella,   pe

23-07-2017 17:58

Andgelo Mombert

Bonjour à tous,Sur brindille de feuillu (Fraxinus

23-07-2017 18:06

Pintos Angel Pintos Angel

Hi to every body.Anybody has?Eliis, Mycol. Pap. 10

22-07-2017 20:21

Andgelo Mombert

Bonsoir à tous,Un Hymenoscyphus sur feuilles de P

23-07-2017 15:46

Spooren Marco Spooren Marco

Hello,Does someone has : Booth, C. 1967 Pleospora

22-07-2017 20:27

Andgelo Mombert

Bonsoir à tous,Sur feuille morte de Quercus robur

21-07-2017 11:57

Malcolm  Greaves Malcolm Greaves

I have seen one or two examples of paraphyses bein

18-07-2017 23:58

Luis Ballester Luis Ballester

Hola a todosWe have found this Peziza growing cesp

20-07-2017 16:05

Castillo Joseba Castillo Joseba

En madera no identificada,   posiblemente  Fagus

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Conidia on Fagus
Steffen Lorenz, 23-07-2017 18:32
Hello,

I found these conidia on Fagus sylvatica (a thick slice of the stem). They resemble Prosthecium pyriforme but this species is restricted to Acer.

The conidia are muriform, have a 1,5 µm thick hyaline sheath and measure 32-38 x 14-17 µm (without sheath).

Is it possible to determine the species?

Regards
Steffen
  • message #49760
  • message #49760
Hermann Voglmayr, 24-07-2017 15:15
Hermann Voglmayr
Re : Conidia on Fagus

Hi Steffen,


Concerning the bark features seen in your illustration the substrate clearly is not Fagus but Acer pseudoplatanus.


So you are right, the species is from the Stegonsporium pyriforme group, there are three cryptic species which can only be reliably identified by sequence data.


See Voglmayr, H., Jaklitsch, W. M., 2014. Stilbosporaceae resurrected: generic reclassification and speciation. Persoonia 33: 61-82, available for free download at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4312938/


Hermann