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03-09-2016 16:44

Per Vetlesen

Hi everybodyI found this one in fire site in Stang

03-09-2016 22:09

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,J'ai trouvé récemment cet Ascobo

04-09-2016 10:28

Bernard CLESSE Bernard CLESSE

Bonjour à tous,Hier dans une boulaie tourbeuse à

03-09-2016 21:12

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,J'ai trouvé dernièrement, sur ch

03-09-2016 23:47

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Parece que últimamente Bernard y y

01-09-2016 19:23

Andgelo Mombert Andgelo Mombert

Bonjour à tous,Mon premier message sur ce forum,

02-09-2016 15:23

SYLVAIN ARD

Bonjour, Je viens proposer mes services bénévol

31-08-2016 17:10

Till Lohmeyer

Hallo,Does anyone, by chance, possess a pdf of Arx

31-08-2016 00:21

Malcolm  Greaves Malcolm Greaves

Has anyone a PDF of the Kullman work on Scutellini

31-08-2016 11:37

Blasco Rafael Blasco Rafael

Hola, he recogido estas muestras a 2200m, en orill

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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