Accès membres

Mot de passe perdu? S'inscrire

23-10-2025 20:59

Patrice TANCHAUD

Bonsoir, est-ce que quelqu'un posséderait un com

24-10-2025 14:50

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Oct. 2025

24-10-2025 03:11

Francois Guay Francois Guay

I found this fungus growing on decaying conifer wo

20-10-2025 09:36

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for the following article:Bene

07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

21-10-2025 23:13

F. JAVIER BALDA JAUREGUI

Hello to everyone.Did you think it could, be a pyx

22-10-2025 06:43

Ethan Crenson

Hi all, I'm having some difficulty with this Orbi

22-10-2025 14:45

Lukas Verboom

Dear all,I collected this in the Netherlands, on t

22-10-2025 11:13

Jean-Luc Ranger

Bonjour,  Petites boules plus ou moins sphériqu

21-10-2025 21:25

Philippe PELLICIER

Bonjour,J'ai récolté en septembre sur une litiè

« < 1 2 3 4 5 > »
Dactylospora sur Buxus sempervirens
Gilles Corriol, 25-05-2013 15:18
Gilles CorriolJe tente à nouveau ma chance avec un Dactylospora.

Récolte sur branche morte de Buxus sempervirens colonisée par Peniophora proxima. GC13051713.

Spores 16,3-20,7 x 4,7-6,0 µm, brunes, à 3-7 cloisons transeversales et parfois légèrement muriformes.
Asques à paroi épaisse, sommet amyloïde et base dextrinoïde.
Paraphyses multicloisonnées, à article terminal clavé, à pigment brun épipariétal.
Textura angularis. Excipulum ectal brun foncé, globulosa.

Avec la maigre documentation sur ce genre à ma disposition, je vais vers D. frigida.

Merci d'avance pour vos avis.
  • message #23634
  • message #23634
  • message #23634
  • message #23634
  • message #23634
  • message #23634
Hans-Otto Baral, 25-05-2013 15:38
Hans-Otto Baral
Re : Dactylospora sur Buxus sempervirens
There is a similar species on Crataegus ("submuriformis") in which the hymenium and excipulum stains pinkish-lilac in KOH. So could you please look what colour your section takes in KOH?

Zotto
Gilles Corriol, 30-05-2013 16:27
Gilles Corriol
Re : Dactylospora sur Buxus sempervirens
Here it is. Yes, very nice reaction in KOH 5 %.
So it is an unpublished species of yours ?

Thank you for your very appreciated help !
Gilles
  • message #23713
  • message #23713
Hans-Otto Baral, 16-06-2013 19:02
Hans-Otto Baral
Re : Dactylospora sur Buxus sempervirens
One of Guy Marson's undescribed species.

Important is to look whether the spore wall is smooth or warted. Do you have a close-up of a spore? Also by focussing on the wall surface?
Alain GARDIENNET, 22-03-2023 19:14
Alain GARDIENNET
Re : Dactylospora sur Buxus sempervirens
Hi friends,
I regurlarly meet this nice little discomycete since 2008. I've very recently found it. Exactly the same.
Did you, or Guy,  get taxonomical news since 2013 ?
As the bark of my branch is greened, I thought for a while of a lichenized fungus. But nothing assures me that the alga is associated with this fungus. Presence also in the vicinity of 3 liverworts: Metzgeria furcata, Radula complanata and Frullania dilatata.
Best wishes,
Alain
Hans-Otto Baral, 22-03-2023 21:12
Hans-Otto Baral
Re : Dactylospora sur Buxus sempervirens
Hi Alain, I am not really familiar with this genus. There exist some sequences by Guy from submuriformis on Crataegus. In the meantime, one must take care also of the anamorph, no idea if any was described on Buxus. The generic name Sclerococcum is now used instead of Dactylospora. (see Olariaga et al. 2019)
Alain GARDIENNET, 23-03-2023 09:45
Alain GARDIENNET
Re : Dactylospora sur Buxus sempervirens
Thanks Zotto.
I keep material in herbarium, for future...
Hans-Otto Baral, 23-03-2023 09:51
Hans-Otto Baral
Re : Dactylospora sur Buxus sempervirens
I am sceptical if there will be anyone to describe these. Perhaps in 100 years :-(