14-07-2025 11:20
Michel Hairaud
Bonjour, Voici une espèce de (?) Hyaloscyphace
16-01-2023 21:31
Riet van Oosten
Hello, Nearby the find of Calycina claroflava on
14-07-2025 17:55
Yanick BOULANGERBonjourAutre dossier laissé en suspendJe viens de
14-07-2025 11:17
Yanick BOULANGERBonjourJ'ai un dossier Jackrogersella qui est rest
14-07-2025 15:52
Gernot FriebesHi,I wanted to share this collection on Rubus idae
14-07-2025 13:37
Gernot FriebesHi,do you think this collection could be R. ulmari
14-07-2025 11:19
Michel Hairaud
Bonjour, Voici une espèce de (?) Hyaloscyphace
12-07-2025 16:45
Thierry Blondelle
Bonjour à tous,J'avais d'abord pensé à des stro
05-07-2025 12:38
Åge OterhalsI found this pyrenomycetous fungi in pine forest o
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?
