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10-04-2026 23:22

Gernot Friebes

Hi,ascospores are 1- to 3-septate, approximately 

10-04-2026 15:51

William Slosse William Slosse

Hello everyone, On 08/04/26, I found a growth sit

09-04-2026 15:25

Jac Gelderblom

On bare soil between mosses Ifound an asco I deter

09-04-2026 13:55

Thomas Læssøe

https://svampe.databasen.org/observations/10589176

09-04-2026 10:12

Thomas Læssøe

https://svampe.databasen.org/observations/10587061

08-04-2026 20:33

Vasileios Kaounas Vasileios Kaounas

Found 07-04-26, in Abies cephalonica. Diameter 1,

08-04-2026 10:39

FRANCIS FOUCHIER

Bonjour , je recherche en pdf cet article: KORF R

06-04-2026 15:04

David Chapados David Chapados

Hi! Could someone help me identifying this specim

29-06-2016 15:18

Per Vetlesen

HiIt was found on the bark of a dead branch of Jun

07-01-2018 22:47

Per Vetlesen

Grown in moist chamber on bark/resin of fallen Pin

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Karstenia ? on Blechnum
Chris Yeates, 05-09-2020 14:38
Chris Yeates
I have made a surprise collection on the rachis of a Blechnum spicant frond Superficially like a Karstenia, but I appreciate that this is not an easy area.

Given that I have only scant material I would appreciate some guidance on microscopical examination. Presumably water first and then which reagents?

Thanks, Chris
  • message #64885
  • message #64885
Erwin Gruber, 05-09-2020 14:47
Re : Karstenia ? on Blechnum
Chris, as your photos reveal, the tiny ascomata - or conidiomata? grew on the leaf stalk of (Blechnum) now again preferred Struthiopteris spicant. Rachis is the right term for the leaf midrib, proceeding the stipe in the blade.
I may not provide guidance for examination so far, sorry!
Best regards
Erwin

p.s. Did you ever find or sample this parasitic fungus? http://www.ascofrance.fr/forum/64784/reports-of-parasitic-cryptomycina-pteridis
Hans-Otto Baral, 05-09-2020 16:17
Hans-Otto Baral
Re : Karstenia ? on Blechnum
I suggest to try a median section with a razor blade - important are the periphysoids on the margin. Of course the IKI reaction is necessary to check, of the hymenium and of the ascus apical ring. - My guess is a Karstenia indeed.