12-07-2015 00:05
Nedim Jukic
This one from the same locality as the previous on
06-06-2026 17:44
Steve ClementsBonjour, This disco was on planed wood 3 x 1.5 cm
14-08-2016 23:15
Alex Akulov
Dear friendsCan you help me to find the descriptio
05-06-2026 11:02
Thomas Læssøehttps://svampe.databasen.org/observations/10596691
04-06-2026 11:36
Gernot FriebesHi,found on Vaccinium myrtillus.Asci: IKI –, 8-s
05-06-2026 12:10
François Freléchoux
Capitotricha sp. sur Lonicea caerulea Caractères
19-05-2026 10:27
Patrice TANCHAUDBonjour, récolte récente sur terre retournée i
04-06-2026 18:39
Gernot FriebesHi,I collected this species in two different locat
Minute pyrenomycete on Olea leaves
Hans-Otto Baral,
12-02-2009 22:01
Today I received from Pablo fresh Lambertella on Olea leaves, and during study I discovered a very small pyrenomycete. Any idea?Perith. 70 µm diam, globose, black, with some dark brown short stiff setae around the ostiole which I did not see. Asci *14-19 x 7.7-8.5 µm, 8sp., hardly any vacuole water around, IKI-, thin-walled all over (also in dead state). Sp. *7.5-9 x 2.3-2.5 µm, 1-septate, eguttulate.
Zotto
Hans-Otto Baral,
12-02-2009 22:02
Re:Minute pyrenomycete on Olea leaves
squashed perithecium
Hans-Otto Baral,
12-02-2009 22:03
Re:Minute pyrenomycete on Olea leaves
3 apparently living and one dead ascus. Spores appear to slip out of a sheath.
Jean-Pierre Lafont,
13-02-2009 00:12
Re:Minute pyrenomycete on Olea leaves
Hello Zotto
Were the ascomas surrounded by spots of a black powdery coating? Actually it looks like a "sooty mould". The size of the ascostromata , the 1-septate hyaline ascospopres and the presence of hyphal appendages are suggestive of family Antennulariellaceae. Usually, in mature ascospores, one of the sister cells is broader than the other one, which seems to be the case for at least one of the spores of your Figure 3. Unfortunately, the literature on this group is scarce, dated and difficult to find. See Hughes, 1976, Mycologia LXVIII, 693-821. I am anything but an expert of this group, and this is only a suggestion...
Sincerely
Jean-Pierre
Were the ascomas surrounded by spots of a black powdery coating? Actually it looks like a "sooty mould". The size of the ascostromata , the 1-septate hyaline ascospopres and the presence of hyphal appendages are suggestive of family Antennulariellaceae. Usually, in mature ascospores, one of the sister cells is broader than the other one, which seems to be the case for at least one of the spores of your Figure 3. Unfortunately, the literature on this group is scarce, dated and difficult to find. See Hughes, 1976, Mycologia LXVIII, 693-821. I am anything but an expert of this group, and this is only a suggestion...
Sincerely
Jean-Pierre
Hans-Otto Baral,
13-02-2009 00:25
Re:Minute pyrenomycete on Olea leaves
Dear Jean-Pierre
The Antennulariellaceae, hug, belong in the Capnodiales, Dothideomycetes, according to Eriksson's Outline of genera. I know quite well the fact that species with bitunicate asci often have such asymmetrical spores with the upper cell broader. But here I had the feeling they are very much equal, and the asci are really thin-walled. Maybe the one spore looks asymmetrical because it lies oblique and is only partly sharp. But let us see the opinion of others.
thanks
Zotto
The Antennulariellaceae, hug, belong in the Capnodiales, Dothideomycetes, according to Eriksson's Outline of genera. I know quite well the fact that species with bitunicate asci often have such asymmetrical spores with the upper cell broader. But here I had the feeling they are very much equal, and the asci are really thin-walled. Maybe the one spore looks asymmetrical because it lies oblique and is only partly sharp. But let us see the opinion of others.
thanks
Zotto