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13-09-2021 15:54

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,while making a section of Scutellinia olivas

13-09-2021 09:47

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,please, could somebody provide a key to Caly

10-09-2021 16:04

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur branche morte de Salix sp., vers 230

09-09-2021 20:11

William Slosse William Slosse

Hello everyone,on 04/09/21 I found the following a

30-07-2021 00:01

Philippe  Larue Philippe Larue

Bonsoir à tous, Un sujet récent sur notre forum

08-09-2021 22:32

Marja Pennanen

Hello forum, I have found these dark greyish ones

09-09-2021 18:34

Enrique Rubio Enrique Rubio

Hi againThese small, blackish, somewhat setose, py

08-09-2021 18:25

Castillo Joseba Castillo Joseba

De esta mañana en un campeo a la orilla de un rio

06-09-2021 17:43

Ronald Morsink

Hello, These i found on the side of a stream betw

07-09-2021 20:35

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

MollisiaHello,please, how would you determine this

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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