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25-04-2010 20:56

Jacques Fournier Jacques Fournier

Minute yellow things on dead stromata of Eutypella

24-04-2010 23:35

Martin Bemmann Martin Bemmann

Hello, this one I collected nearly one year ago

24-04-2010 15:03

Beñat Jeannerot Beñat Jeannerot

Bonjour à tous, Une récolte faite dans mon ja

24-04-2010 09:47

René Dougoud

Chers Tous, Je recherche la publication Lasiob

23-04-2010 22:14

Hans-Otto Baral Hans-Otto Baral

Hi Here is a sparse collection by Guy Marson, on

23-04-2010 20:41

Miguel Ãngel Ribes Miguel Ángel Ribes

Hello Is there any difference betwen H. lacunos

22-04-2010 21:40

Roland Labbé

Bonjour ! Voici un disco de la région de Québ

21-04-2010 17:08

Gernot Friebes

Hi, here I'd need help because I have never see

20-04-2010 18:43

Pablo Chacón Pablo Chacón

Initialement assistant cette image de Hypocrea, cr

19-04-2010 00:06

Miguel Ãngel Ribes Miguel Ángel Ribes

I have this 1-2 mm red apos. It seems like Mollisi

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Hyalorbilia
Jacques Fournier, 25-04-2010 20:56
Jacques FournierMinute yellow things on dead stromata of Eutypella caricae. I gave this one a try because of the small globose ascospores.
Apos yellow, 80-120 µm diam, obconical with a very short whitish stipe.
Asci tightly packed under a refractive pelicle, cylindrical with croziers at base, 25-30 x 4.5 µm, 8-pored, IKI-. Paraphyses cylindric to slightly apically swollen.
Ascospores subglobose, 1.8-2.5 µm diam, with a slightly eccentric droplet.
Zotto, with your key I arrived to Hyalorbilia erythrostigma. Is it plausible?
Thanks,
Jacques
  • message #11259
Jacques Fournier, 25-04-2010 20:56
Jacques Fournier
Re:Hyalorbilia
asci
  • message #11260
Jacques Fournier, 25-04-2010 20:56
Jacques Fournier
Re:Hyalorbilia
ascus
  • message #11261
Stip Helleman, 25-04-2010 21:26
Stip Helleman
Re:Hyalorbilia
Hi Jaques,
clearly Hyalorbilia errythrostigma i would say.
cheers Stip
Hans-Otto Baral, 25-04-2010 21:55
Hans-Otto Baral
Re:Hyalorbilia
Dear Jacques

yeah, exactly! This will be a new substrate. Could you please tell me the collection data? The species is surely not rare but easily overlooked.

You didn't see T-shaped conidia? They are rarely there, but would help in clarifying whether those finds in which the species grows on Orbilia apothecia are identical.

Zotto
Jacques Fournier, 25-04-2010 22:08
Jacques Fournier
Re:Hyalorbilia
Hi Zotto and Stip,
thanks for your comments. The key worked well!
I found the fungus when pruning the dead branches of a Ficus.
France, Ariège, Rimont, Las Muros, 470m, on old stromata of Eutypella caricae on a dead decorticated branch of Ficus carica, 25 Apr. 2010, JF 10019. Eutypa lata was also present next to Eutypella.
I searched for the T-shaped conidia but I did not fing them. Instead I found clusters of large, elongated distoseptate pale brown conidia that also inhabit the old stromata, very different from those of anamorphs in Hyalorbilia.
Have a nice evening,
jacques