Accès membres

Mot de passe perdu? S'inscrire

31-08-2025 17:32

Albotricha ou autre Lachnaceae ?
Michel Hairaud Michel Hairaud

Bonjour, Pas d'identité trouvée pour cette réc

31-08-2025 19:41

Svensk bot. Tidskr.
Enrique Rubio Enrique Rubio

Hi to someone.I need to download this issue of Sve

31-08-2025 14:34

Rutstroemia alnobetulae or not.
Thomas Flammer

I have found a Rutstroemia on abt. 2000 m on Alnus

29-08-2025 19:04

Yellow apothecia on cow dung without hairs - Cheilymenia spec.?
Thomas Flammer

Spores 21.2 - 26.2 x 8.3 - 11.3 µm - Q: 2.20 - 2.

30-08-2025 18:29

Rutstroemia
Joaquin Martin

Hi,I found this undetermined ascomycete on broadle

28-08-2025 17:24

Literatur request J. Berthier, Typhula
Thomas Flammer

I know, that this is not the real topic of this fo

29-08-2025 05:16

Teleomorph of Dendrostilbella smaragdina ?
Francois Guay Francois Guay

I think I may have found the teleomorph of Dendros

24-08-2025 21:59

Podospora
Edmond POINTE Edmond POINTE

Bonsoir amis mycologues,Trouvé sur crottin de che

27-08-2025 12:02

On Abies alba macroscopically similar to Propolis sp.
Pavol Palo

Hello dear friendsI would like to ask for sharing

25-08-2025 17:37

Petit asco indéterminé
François Freléchoux François Freléchoux

Bonjour,Nous avons trouvé samedi dernier à l'ét

« < 1 2 3 4 5 > »
Orbilia/Hyalorbilia on "pyrenomycete"
Edvin Johannesen, 24-05-2021 21:41
Edvin Johannesen
Hi!

This tiny (0.2-0.3 mm), orange one is growing on a stromatic sordariomycete (overgrown by something alike Echinosphaeria) on Salix caprea. I have no ID on the sordario yet.  Southern Norway in humid ravine.

The Orbilia/Hyalorbilia has broadly ellipsoid spores with one distinct SB at each pole.  Measure ca. 2.5-3 x 5 micr.  Spores appear more subglobose in water and more ellipsoid with slightly pointed ends in CB (see photos).  Dead asci (I think) do not look truncate. Paraphyses broadly cylindrical.

Suggestions based on this limited information?
  • message #68915
  • message #68915
  • message #68915
  • message #68915
  • message #68915
  • message #68915
  • message #68915
  • message #68915
  • message #68915
Hans-Otto Baral, 24-05-2021 22:24
Hans-Otto Baral
Re : Orbilia/Hyalorbilia on "pyrenomycete"
This is not orbiliaceous, perhaps a Hyaloscypha. Iodine reaction of asci is negative?
Edvin Johannesen, 24-05-2021 22:36
Edvin Johannesen
Re : Orbilia/Hyalorbilia on "pyrenomycete"
I will check IKI. (Why is is it not orbiliaceous?)

Thanks.
Hans-Otto Baral, 24-05-2021 23:01
Hans-Otto Baral
Re : Orbilia/Hyalorbilia on "pyrenomycete"
The conical ascus apex would be very unusual, also there are no spore bodies I think.
Edvin Johannesen, 25-05-2021 16:28
Edvin Johannesen
Re : Orbilia/Hyalorbilia on "pyrenomycete"
You were right, of course, Zotto. The asci apices are hemiamyloid (brownish in Lugol, haven't checked KOH pretreatment). I initially thought there were two species growing side-by-side on the pyrenomycete, but now I realise that the Cistella-like whitish ones and the more reddish, smooth ones are the same. I attach a few photos og the paler, Cistella-like apothecia. I suspect I have the same as Enrique found back in 2014: http://ascofrance.fr/search_forum/27839

I think I have seen gelatinised hyphae. But the marginal "hairs" I have not spotted in the microscope.  Has the Hyphodiscus "Cistella" been further evaluated?


  • message #68928
  • message #68928
  • message #68928
  • message #68928
Hans-Otto Baral, 25-05-2021 17:53
Hans-Otto Baral
Re : Orbilia/Hyalorbilia on "pyrenomycete"
The limits to Hyphodiscus are not yet clear and there are no news about that.
Edvin Johannesen, 25-05-2021 18:06
Edvin Johannesen
Re : Orbilia/Hyalorbilia on "pyrenomycete"
OK, thanks!