07-06-2026 15:10
William Slosse
Hello everyone,On 05-06-26, I found following asco
07-06-2026 12:09
François Freléchoux
Bonjour, Voici une brève description de ce qui m
05-06-2026 11:02
Thomas Læssøehttps://svampe.databasen.org/observations/10596691
07-06-2026 12:43
Steve ClementsBojour. This was a strange find on a stick on my
12-07-2015 00:05
Nedim Jukic
This one from the same locality as the previous on
06-06-2026 17:44
Steve ClementsBonjour, This disco was on planed wood 3 x 1.5 cm
14-08-2016 23:15
Alex Akulov
Dear friendsCan you help me to find the descriptio
04-06-2026 11:36
Gernot FriebesHi,found on Vaccinium myrtillus.Asci: IKI –, 8-s
Nectriopsis rubefaciens?
Niek Schrier,
16-01-2022 18:26
I found a (lichenicolous?) fungi growing on thallus of Parmelina pastillifera. From a macro perspective, they look like Nectriopsis rubefaciens: small fuiting bodies wit perithecial hairs. However, the spores I sofar see in my samples are not corresponding with the spores of N. rubefaciens. The are 1-celled, 12,1 - 15,9 x 2,5-3,2 micrometer (1 div = 2,9 um).
Does anyone know what species this is? Thanks in advance!
Kind regards,
Niek Schrier
Franz Berger,
16-01-2022 20:14
Re : Nectriopsis rubefaciens?
The determination is correct! The actual name is Trichonectria r. now, due to some marginal discriminating features to Nectriopsis, (which has not been valuated by gen sequences until now).
To my knowledge, Parmelina pastillfiera is a new host lichen!
Franz Berger
To my knowledge, Parmelina pastillfiera is a new host lichen!
Franz Berger
Niek Schrier,
16-01-2022 21:04
Re : Nectriopsis rubefaciens?
Thank you for the conformation Franz! So the spores can variate for this species? Or are these undeveloped 1-celled spores which become the 2-celled spores I see in documentation about this species?
I also cound not find any note for this species hosting on Parmelina pastillfiera, but did read it hosts on Parmeliaceae, indicating it has a lot of hosts to choose from.
Niek Schrier
I also cound not find any note for this species hosting on Parmelina pastillfiera, but did read it hosts on Parmeliaceae, indicating it has a lot of hosts to choose from.
Niek Schrier
Franz Berger,
17-01-2022 14:21
Re : Nectriopsis rubefaciens?
It was supposed by some authors, that T.rubefaciens could be an agglomerate of species. There are not so many hosts known till now, mostly it was found on Parmelia sulcata and P.saxatilis agg. I have a collection on Flavoparmelia caperata with much longer ascospores, affirming this hypothesis. And one on Parmelina tiliacea.
1-celled ascospores might be very young ones or mature broken into 2 parts. Irregularities can be observed sometimes, Not only in T.rubefaciens.
Keep an eye on this specimen. I was informed recently, that a working group in Krakau is starting to investigate Hypocreales in nearer future.
Yours
Franz
1-celled ascospores might be very young ones or mature broken into 2 parts. Irregularities can be observed sometimes, Not only in T.rubefaciens.
Keep an eye on this specimen. I was informed recently, that a working group in Krakau is starting to investigate Hypocreales in nearer future.
Yours
Franz