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21-12-2025 09:32

Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

22-12-2025 00:47

Patrice TANCHAUD

Bonsoir, récolte à proximité du milieu dunaire

21-12-2025 21:32

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

21-12-2025 21:40

Isabelle Charissou

Bonjour, j'aimerais connaitre les références de

21-12-2025 21:31

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

21-12-2025 21:31

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

21-12-2025 12:34

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

20-12-2025 23:08

Patrice TANCHAUD

Bonsoir, récolte sur sol sablonneux dans l'arriÃ

21-12-2025 01:54

David Chapados David Chapados

Hi,Would it be possible to find the species with t

20-12-2025 15:47

Mirek Gryc

Hi.These grew on pine wood that was heavily covere

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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