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05-09-2021 19:06

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,do you agree here with Orbilia sarraziniana?

02-09-2021 23:11

Lothar Krieglsteiner Lothar Krieglsteiner

found today east of Spiegelau, on decaying logs an

02-09-2021 13:49

Edvin Johannesen Edvin Johannesen

These tiny apothecia (less than 1 mm) were found i

03-09-2021 16:16

Edvin Johannesen Edvin Johannesen

These peach-coloured (becoming more reddish on age

03-09-2021 21:33

jean claude chasle

Bonjour, Récoltées le 27/8 sur morceau de bois

03-09-2021 19:35

hannie wijers

I tried a couple of times to sent a massage fot th

02-09-2021 22:31

Marek Capoun Marek Capoun

Hello everybody, I need help with the determinatio

02-09-2021 18:17

Chris Yeates Chris Yeates

Bonjour tous This is a discomycete the colour of

29-01-2020 11:48

Josep Torres Josep Torres

Hola.Una pruína color salmón anaranjado fotograf

30-08-2021 19:09

Jean-Louis JALLA Jean-Louis JALLA

Une amie de Perpîgnan dispose de l'utilisation d'

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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