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22-12-2011 09:43

Alain GARDIENNET Alain GARDIENNET

Bonjour forum,Comment s'appelle ce petit Capronia

22-12-2011 17:32

Hans-Otto Baral Hans-Otto Baral

Hidoes anybody have the paper by Rauschert (1988),

19-12-2011 20:22

Martin Mullett

Hello,I was wondering if anybody could confirm wha

19-12-2011 18:44

Chris Yeates Chris Yeates

Bonsoir AlainJe vois avec intérêt votre collecti

20-12-2011 12:17

Gernot Friebes

Hi again,here I have a Peziza which I received fro

19-12-2011 17:15

Yatsiuk Iryna Yatsiuk Iryna

Dear friends! This specimen was collected on a sm

08-12-2011 17:02

Yatsiuk Iryna Yatsiuk Iryna

Dear colleagues, I have found a small disco on th

18-12-2011 10:34

Marja Pennanen

Hello,I found some dark ascos on propably Xylaria

18-12-2011 21:39

Illescas Tomás Illescas Tomás

Buenas noches: Adjunto imagen de un único ejempl

13-12-2011 23:20

Alain BRISSARD

Bonsoir à tousQuinze jours après mise en chambre

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cf. Nectria
Zuzana Sochorová (Egertová), 13-09-2021 15:54
Zuzana Sochorová (Egertová)Hello,
while making a section of Scutellinia olivascens using the stereomicroscope, I noticed little scarlet nectrioid fungi growing nearby.
They are from the Czech Republic, from a locality in 180 m a.s.l., and were growing on tiny roots in a very wet place, close to a little pond (the most frequent tree in the locality is Salix). Apothecia grow in a group.

Ascospores distinctly warted, 1-septate, (14.9) 15.6 - 16 (16.2) × (6) 6.1 - 6.8 (6.9) µm, Q = 2.3-2.7
Me = 15.7 × 6.4 µm; Qe = 2.4


I used the key by Hirooka et al. 2012 (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3310236/)


It leads me to the point 19, when one has to decide between N. australiensis (a bit smaller ascospores + known from Oceania) and N. noackiana (totally wrong spore size + known from Brazil). When I make a compromise and jump on „known from alpine regions" (instead of temperate to subtropical), I would end at N. berberidicola. But the substrate in my collection is not Berberis :-)
Therefore, I think I am probably searching in a wrong genus.
Could you give me an advice, please?
Thank you, Zuzana

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Zuzana Sochorová (Egertová), 13-09-2021 15:56
Zuzana Sochorová (Egertová)
Re : cf. Nectria
more photos
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Zuzana Sochorová (Egertová), 13-09-2021 17:15
Zuzana Sochorová (Egertová)
Re : cf. Nectria
Maybe Neonectria?
Zuzana Sochorová (Egertová), 13-09-2021 19:05
Zuzana Sochorová (Egertová)
Re : cf. Nectria
Two more photos.
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Christian Lechat, 13-09-2021 20:21
Christian Lechat
Re : cf. Nectria
Hi Zuzana,

your fungus could be Thelonectria veuillotiana or something similar

Christian
Zuzana Sochorová (Egertová), 13-09-2021 21:22
Zuzana Sochorová (Egertová)
Re : cf. Nectria
Hi Christian,
thank you very much!
It seems to be difficult to determine this fungus with certainty without cultivating or sequencing. According to this paper, the spores in my specimens are small for the true T. veullotiana, but species with a better fitting spore size are not known from Europe.
https://www.researchgate.net/publication/229015577_Multigene_phylogenetic_analyses_of_the_Thelonectria_coronata_and_T_veuillotiana_species_complexes#fullTextFileContent
Zuzana