Accès membres

Mot de passe perdu? S'inscrire

02-03-2026 22:07

Jorge Hernanz

Buenas noches!Entre musgos, bajo Pinus halepensis

28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

01-03-2026 18:46

Robin Isaksson Robin Isaksson

Hi! This species i se from time to time in the

26-02-2026 22:06

Malcolm  Greaves Malcolm Greaves

Can someone explain the features that split Geoscy

27-02-2026 17:51

Michel Hairaud Michel Hairaud

Bonjour, Quelqu'un peut il me donner un conseil p

27-02-2026 16:17

Mathias Hass Mathias Hass

Hi, Found this on Betula, rather fresh fallen twi

01-03-2026 18:02

Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

01-03-2026 14:10

Antonio Couceiro Antonio Couceiro

Hola, me gustaria conocer opiniones sobre este tem

01-03-2026 20:34

Hans-Otto Baral Hans-Otto Baral

Does someone have access to Phytotaxa? I am intere

« < 1 2 3 4 5 > »
Pyrenomycete from Caragana arborescens twings
Alex Akulov, 30-04-2015 09:30
Alex AkulovDear friends
Among the old samples, which are stored in our mycological collection, I found one that was signed as Nectria decora. It is not N. decora a 100% and even non Nectriaceae representative, because presence of many threadlike, branched, septate paraphyses (pseudoparaphyses) in hamathecium.

Perithecia (pseudothecia) erupt in dense groups from the bark of thin dry twigs of Caranana arorescens. Externally perithecia looks olive-brown, but in a cross section the wall is clearly red-brown. The walls of fruiting are very thick. Asci are 67,3-83,6 x 14,2-15,8. Ascospores are arranged in two rows or obliquely, in some cases biseriate in the upper part and uniseriate below. Ascospores hyaline, muriform (with 7-8 transverse and multiple longitudinal and oblique septae), slightly constricted near the central septum, 16,3-21,5 x 4,7-7,6.


Alone I can not reidentify this sample.
If you have some ideas about it, I would greatly appreciate for your help.


Alex

  • message #35480
  • message #35480
Lothar Krieglsteiner, 30-04-2015 15:05
Lothar Krieglsteiner
Re : Pyrenomycete from Caragana arborescens twings

Hello Alex,


this sample has transversely septate spores. So - I first would look in the genus Thyronectria. Maybe there ist a species on Caragana?


Regards from Lothar

Alex Akulov, 30-04-2015 15:50
Alex Akulov
Re : Pyrenomycete from Caragana arborescens twings
Thank you, Lothar
This is really Thyronectria representative with presence of paraphyses in hamathecium.
New article about this genus is in the attached file.

Alex
Lothar Krieglsteiner, 30-04-2015 16:00
Lothar Krieglsteiner
Re : Pyrenomycete from Caragana arborescens twings

thank you for the paper! - very interesting, I did not have it yet.


Maybe you can find a species there - or not?


Regards from Lothar

Lothar Krieglsteiner, 30-04-2015 16:00
Lothar Krieglsteiner
Re : Pyrenomycete from Caragana arborescens twings

thank you for the paper! - very interesting, I did not have it yet.


Maybe you can find a species there - or not?


Regards from Lothar