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02-05-2026 13:06

Pauline. Penna

Bonjour  Please can someone help me with this id

02-05-2026 12:42

Alain BRISSARD

Bonjour à tousJeuidi 30 avril dernier on m'a remi

01-05-2026 22:45

Thierry Blondelle Thierry Blondelle

Bonjour à tous, Une récolte sur bouse séchée d

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

28-04-2026 20:33

Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

30-04-2026 10:43

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia, España, 

30-04-2026 10:28

Rot Bojan

Hello, by appearance I would say that I am dealing

27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

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Lasionectria on lichen
Stip Helleman, 07-10-2013 00:38
Stip HellemanHallo to all,
last friday I collected a piece of a Parmelia-like lichen on bark that looked infected, under the dissecting microscope I found orange hairy perithecia. My best guess is Lasionectria, but lacking any literature about it I am stucked here.
The mature Perithecia are 120 - 150 mu big, KOH negative spores 1 septate 18,5-21,5 x 3,5 no striation is seen, hairs are with thick glassy walls up to 33 x 9,2
Any help is welcome,
T.I.A.
Stip
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Stip Helleman, 07-10-2013 00:41
Stip Helleman
Re : Lasionectria on lichen
micro
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Christian Lechat, 07-10-2013 05:21
Christian Lechat
Re : Lasionectria on lichen
I do not know what is your specimen, there is no Lasionectria known on Lichen. It would be useful to see a section through ascomatal wall to be sure that is the genus Lasionectria.

Regards,
Christian
Walter Gams, 07-10-2013 08:25
Walter Gams
Re : Lasionectria on lichen
Dear Stip,  Please send some material to Benjamin Stielow at CBS for isolation in culture. Such interesting fungi must be cultured and analysed with molecular methods.  Best wishes   Walter
Alain GARDIENNET, 07-10-2013 08:34
Alain GARDIENNET
Re : Lasionectria on lichen
It's probably the one called Trichonectria rubefaciens.
Alain
Hans-Otto Baral, 07-10-2013 08:44
Hans-Otto Baral
Re : Lasionectria on lichen
Did you compare Trichonectria rubefaciens? I have images of a collection of Piotr: Trichonectria rubefaciens, PP20080720-003, 010.jpg
Zotto
Stip Helleman, 07-10-2013 16:14
Stip Helleman
Re : Lasionectria on lichen
Thanks to all,
Christian, even for me this is too small to make a section freehand.
it seems to be Trichonectria rubefaciens indeed from pictures, although I could not find a description of the species yet.
Walter, could you send me the e-mail adress of Benjamin Stielow so I can can contact him about it, there seems to be no sequence of this species in Genbank.
Best wishes,
Stip
Walter Gams, 07-10-2013 16:51
Walter Gams
Re : Lasionectria on lichen
Het is B.Stielow@cbs.knaw.nl
He will probably forward the material to Pedro Crous or Lorenzo or other interested people.
Stip Helleman, 07-10-2013 20:29
Stip Helleman
Re : Lasionectria on lichen
Bedankt Walter