14-11-2025 16:26
Marian Jagers
Hello everyone, On dead wood of Cytisus scoparius
17-11-2025 21:46
Philippe PELLICIERBonjour,Récolté sur bois pourrissant de feuillu
20-11-2025 14:14
Mick PeerdemanFound on the leaves of 'Juglans regia' in the Neth
20-11-2025 13:07
Mick PeerdemanIn January i found these black markings on the dea
20-11-2025 12:38
Mick PeerdemanDear all,Last week i stumbled upon a leaf of ilex
19-11-2025 23:21
carl van den broeck
Dear guestIn Waardamme, Belgium, I found dozens of
19-11-2025 20:51
Andreas Millinger
Good evening,found this species on a felled trunk
19-11-2025 13:04
Bruno Coué
Bonjour,je sollicite votre avis pour la récote
Lasionectria?
Hans-Otto Baral,
29-07-2009 15:48
Here is a very sparse find of a minute ?Lasionectria. It grew in Tübingen in my garden, on a dead old, 18 mm thick, decorticated branch of Malus hanging in 3,5 m above ground, soc. Orbilia vinosa and Parmelia. I did not arrive with Amy's keys to a proper genus. I admit I did not test KOH but assume it is a Bionectriacee.
Perith. pale orange-rose, ca. 150 µm diam, dry collapsing. Sp. *10-12 x 3.3-3.5 µm, narrowly ellipsoid, 1-septate, upper cell slightly larger?, 1 medium-sized oildrop in each half near septum, smooth.
thanks
Zotto
Hans-Otto Baral,
29-07-2009 15:49
Re:Lasionectria?
I did not see any oil drops in the peridial cells, nor some differentiation in more than one layer .
Hans-Otto Baral,
29-07-2009 15:51
Re:Lasionectria?
Hairs are often distinctly thick-walled, and somewhat flexuous.
Hans-Otto Baral,
29-07-2009 15:52
Re:Lasionectria?
The spores are badly visible here, and the material showed only a few mature asci and spores.
Christian Lechat,
29-07-2009 16:17
Re:Lasionectria?
Hi, Zotto,
your fungus is it fungicolous? or on a byssoid stroma? could you make a section of acomatal wall? could you give the thickness of it?
Thank you
your fungus is it fungicolous? or on a byssoid stroma? could you make a section of acomatal wall? could you give the thickness of it?
Thank you
Hans-Otto Baral,
29-07-2009 18:13
Re:Lasionectria?
Hi Christian
the section you see on my second image. The wall is laterally about 25 µm thick. The substrate could partly be an old lichen thallus but this is very difficult to see because it is strongly decayed, see image.
There are 3 perithecia left.
Zotto
the section you see on my second image. The wall is laterally about 25 µm thick. The substrate could partly be an old lichen thallus but this is very difficult to see because it is strongly decayed, see image.
There are 3 perithecia left.
Zotto
Christian Lechat,
29-07-2009 18:28
Re:Lasionectria?
Ok Zotto,
I think it is maybe a Nectriopsis but with so not enough material it is going to be difficult to find a name.
Cheers,
Christian
I think it is maybe a Nectriopsis but with so not enough material it is going to be difficult to find a name.
Cheers,
Christian
Hans-Otto Baral,
01-08-2009 11:11
Re:Lasionectria?
Have today looked at another ascoma, I kept the branch moist overnight. So now I have seen abundant mature spores. Also the hairs are frequently apically branched, with truncate ends.
Perith. pale orange-rose, ca. 150-200 µm diam (without hairs), dry collapsing. Asci 8-sp., IKI-. Sp. submature *10-12 x 3.3-3.5 µm, mature *11-14 x 3.7-3.9(-4.5) µm, KOH 11-14 x 3.3-3.6 µm, narrowly ellipsoid, 1-septate, 1 medium-sized oil-drop in each half near septum, distinctly densely warted (punctate), in KOH looking almost smooth (warts lower?). Hairs 35-48 x 3.5-4.5 µm, wall 1-1.5 µm thick, IKI-. The peridial wall is laterally about 25 µm thick, KOH-
Zotto
Perith. pale orange-rose, ca. 150-200 µm diam (without hairs), dry collapsing. Asci 8-sp., IKI-. Sp. submature *10-12 x 3.3-3.5 µm, mature *11-14 x 3.7-3.9(-4.5) µm, KOH 11-14 x 3.3-3.6 µm, narrowly ellipsoid, 1-septate, 1 medium-sized oil-drop in each half near septum, distinctly densely warted (punctate), in KOH looking almost smooth (warts lower?). Hairs 35-48 x 3.5-4.5 µm, wall 1-1.5 µm thick, IKI-. The peridial wall is laterally about 25 µm thick, KOH-
Zotto
Hans-Otto Baral,
01-08-2009 11:12
Re:Lasionectria?
Have such hairs ever been described in Hypocreales?
