Accès membres

Mot de passe perdu? S'inscrire

09-01-2026 10:08

Orbilia posible aurantiorubra
Blasco Rafael Blasco Rafael

Hola, en el mismo habitat que la anteriorRetamaDia

08-01-2026 21:22

Orbilia pilifera posible
Blasco Rafael Blasco Rafael

Hola, He recogido esta muestra de Orbilia sobre Re

07-01-2026 10:24

Pezicula sp. on indet. hardwood - 303870019
Danny Newman Danny Newman

Pezicula sp. on indet. hardwood Appalachian Highl

07-01-2026 22:22

Tatraea sp. on indet. hardwood - 303452087
Danny Newman Danny Newman

Tatraea sp. on indet. hardwood The Swag, Great Sm

07-01-2026 17:29

White tree-like anamorph on Populus
Marc Detollenaere Marc Detollenaere

Dear Forum,On a barkless Populus I found some smal

10-11-2021 17:33

anamorph Chlorociboria aeruginella
Riet van Oosten Riet van Oosten

Add-on topic http://www.ascofrance.com/forum/7059

07-01-2026 10:05

cf. Chaetospermum on Xylaria - 303631739
Danny Newman Danny Newman

cf. Chaetospermum on XylariaCosby Campground, Grea

06-01-2026 20:54

Gymnoascus ?
Thierry Blondelle Thierry Blondelle

Bonjour à tous et meilleurs voeux pour cette nouv

02-01-2026 17:43

Spores with a sheath
MARICEL PATINO

Hi there, although I couldn't see the fruitbody, I

04-01-2026 17:45

Pithya cupressina with large apothecia looking like P. vulgaris.
Stephen Martin Mifsud Stephen Martin Mifsud

I was happy to find these orange asmocyetes which

« < 1 2 3 4 5 > »
Hairy disco on Alnus leave
Daniel Ghyselinck, 21-05-2015 20:29
Hi everybody,
This minute asco was found on Alnus leave last week.
Spores 6 - 8,5 x 1,8 - 2,3, nearly without guttule.
Ascus with crozier, with a purple reaction with IKI.
Paraphyses cylindrical and not protruding.
Outside covered by brown hairs but white at margin. They are completely incrusted. no reaction with KOH.
I thought to a Fuscolachnum, but dit not find any species that matches.
Thank you,
Daniel
  • message #36006
  • message #36006
Daniel Ghyselinck, 21-05-2015 20:30
Re : Hairy disco on Alnus leave
Ascus and hairs...
  • message #36007
  • message #36007
  • message #36007
  • message #36007
Lothar Krieglsteiner, 21-05-2015 20:40
Lothar Krieglsteiner
maybe Cistella deflexa

... could fit, please compare. I think this species grows on Salix and Populus leaves, but why not Alnus`(?)


Regards from Lothar

Daniel Ghyselinck, 21-05-2015 20:44
Re : Hairy disco on Alnus leave
Thank you Lothar,
I will check that...
Best regards,
Daniel
Hans-Otto Baral, 21-05-2015 20:53
Hans-Otto Baral
Re : Hairy disco on Alnus leave
Fuscolachnum isn't a bad idea. And you are sure it is Alnus? The hairs remind me of Rubus.
Daniel Ghyselinck, 21-05-2015 21:01
Re : Hairy disco on Alnus leave

It is the only tree I saw there, but not sure.
Here is the only leave I took. 

  • message #36012
Bernard CLESSE, 21-05-2015 21:22
Bernard CLESSE
Re : Hairy disco on Alnus leave
Salut Daniel,

À mon avis Zotto a raison, il doit s'agir d'une foliole de ronce (Rubus). Je ne pense d'ailleurs pas que les feuilles d'aulne sont poilues. 

Pour te donner une idée, voici une foliole de ronce (avec sa célèbre mine due à Stigmella aurella)

Amitiés,

Bernard
  • message #36013
Hans-Otto Baral, 21-05-2015 21:34
Hans-Otto Baral
Re : Hairy disco on Alnus leave
F. misellum varies rather strongly in spore size, depending apparently on the geography (especially more atlantic samples are often smaller-spored, and maybe the longer-spored ones tend to have an apical ring reacting red).

In which country did you collect it?
Bernard CLESSE, 21-05-2015 21:37
Bernard CLESSE
Re : Hairy disco on Alnus leave
Oui Daniel, je confirme définitivement une foliole de Rubus ! Regarde sur la nervure, on y voit encore des aiguillons typiques de Rubus.

Bernard
  • message #36015
Daniel Ghyselinck, 21-05-2015 21:39
Re : Hairy disco on Alnus leave
Oui, très possible Bernard, il y avait beaucoup de ronces à cet endroit.
So OK for Rubus !
For Cistella deflexa, the spores of my collection are a bit too narrow, and the purple reaction with IKI does not match.  ;O(
Daniel
Daniel Ghyselinck, 21-05-2015 22:09
Re : Hairy disco on Alnus leave
It is collected in centrum of Belgium, province Brabant Wallon.
Daniel
Daniel Ghyselinck, 21-05-2015 22:30
Re : Hairy disco on Alnus leave
Thank you Zotto,
Fuscolachnum misellum seems to fit quite well. It looks exactly like in Dougoud's paper : Quatre discales récoltées sur feuilles de Rubus fructicosus, en photographies et dessins.
And the collection in the book on the Biodiversity of Somedio is also similar.
It is shown with a purple reaction on the site Asco-Sonneberg. 
Best regards,
Daniel
Hans-Otto Baral, 22-05-2015 08:41
Hans-Otto Baral
Re : Hairy disco on Alnus leave
Yes, Ingo Wagner observed this red (pruple) reaction.