Accès membres

Mot de passe perdu? S'inscrire

14-07-2024 18:23

Joaquin Martin

Hi,I found this Ascomycete on horse dung.The spora

13-07-2024 19:50

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I have identified this fungus as Hamatocanth

11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

11-07-2024 14:29

Viktorie Halasu Viktorie Halasu

Hello, a thin-fleshed Mollisia on a monocot stem

08-07-2024 23:34

Villalonga Paco

Small Scutellinia growing in garden soil (calcareo

12-07-2024 02:12

Stefan Jakobsson

On a wet lake shore I found a single minute apothe

11-07-2024 10:57

Viktorie Halasu Viktorie Halasu

Hello, I have here a Mollisia on a leaf (possibly

07-07-2024 10:07

Thomas Flammer

I am struggeling with some tiny yellowish apotheci

09-07-2024 19:34

Kozak Robert

HelloDate: 2024.06.18, loess gorges, on soil (?)A

11-07-2024 15:05

Thomas Læssøe

https://svampe.databasen.org/observations/10423287

« < 1 2 3 4 5 > »
Gyromitra parma?
Manak Roman, 14-04-2024 20:04
Hi all,
I have two very similar finding last weekend and this weekend. In the first case, these were fruiting bodies on a periodically moist site on the smouldering wood of a deciduous tree (a few metres away, fruiting bodies on the smouldering wood of Salix cf. fragilis). The size was about 50 mm. Yesterday I found a similar fruitbody that was slightly darker and 45 mm. It was on a smouldering deciduous tree at the edge of a forest stream.

I've microscoped the spores that the fruiting bodies themselves "shot" onto a microscope slide, so I think they may have been ripe. The size was almost the same in both cases (difference of about 1 µm in length and 0.4 µm in width). Size: 31 - 39 × 12 - 15 µm (measurements in water). The spores had a faintly visible reticulate ornamentation in the CB. Do you think it could be Gyromitra parma? The "appendages" on the ends of the spores don't look right to me.
  • message #79025
  • message #79025
  • message #79025
  • message #79025
Ursula Kozik, 15-04-2024 09:41
Re : Gyromitra parma?
Hallo und guten Tag,

das Sporenmaß ist für G. parma meines Erachtens zu groß und die Ornamentation zu eng und zu flach. G. parma kenne ich mit deutlich höherem weitmaschig ausgeprägtem Ornament.
Könnte es G. matinii sein?


Eine gute Zeit
Ursula

Marek Capoun, 15-04-2024 12:52
Marek Capoun
Re : Gyromitra parma?
Hello.
That's very interesting. Fully developed ornamentation, including polar apicules, is present in G. parma only in very mature or overmature spores. And apothecia with a size around 5 cm can be really immature. However, the shape and size of your spores match G. martinii, if that species really exists. I would also look for loaf-shaped spores. On the other hand, G. martinii should prefer wood of Fagaceae probably and rather higher altitudes.
The genus Gyromitra is far from clear.
Greetings, Marek
Nicolas VAN VOOREN, 17-04-2024 07:51
Nicolas VAN VOOREN
Re : Gyromitra parma?
I think your collection might be G. martinii. It differs from G. parma by a thiner and incomplete network, and low polar spines. As far as I know, G. martinii only grows on large decaying logs of deciduous trees, mainly Fagus, also on Populus. No doubt that its a good species, phylogenetically and morphologically.

Ursula Kozik, 17-04-2024 13:10
Re : Gyromitra parma?
Hallo und guten Tag,

füge zum Vergleich ein Formblatt von G. martinii an.


Eine gute Zeit
Ursula


https://i.ibb.co/0hLMb1q/gp-079.jpg

Gernot Friebes, 17-04-2024 13:11
Re : Gyromitra parma?
Hello,

I also agree with G. martinii. I found it in 2022 on Fagus, which was apparently the first record for Austria. This year I collected it in two more areas, once on Carpinus, once on Fagus and once on a trunk of an unidentified deciduous tree (possibly Acer pseudoplatanus). It seems to be spreading, which is not surprising for an apparently primarily southern European species. Some photos of G. martinii are attached.

Best wishes,
Gernot
  • message #79059
  • message #79059
  • message #79059
  • message #79059
  • message #79059
  • message #79059
Marek Capoun, 17-04-2024 15:45
Marek Capoun
Re : Gyromitra parma?
It would be great! I think the localities where G. martinii has been collected in our country could be counted on the fingers of one hand. Congratulations, Roman!
Manak Roman, 17-04-2024 19:24
Re : Gyromitra parma?
thank you all for your comments. I'll try to stop by one of the sites this weekend and see if I can find any old fruiting bodies to check for micro signatures.
Ursula Kozik, 18-05-2024 13:16
Re : Gyromitra parma?
Hallo und guten Tag,

Romans Fund habe ich mikroskopiert und dokumentiert.


Sporen hyalin, spindelig, 3 Tropfen, an den Polen kurz stachelig warzig. Die Sporen haben eine sehr feine, flache, unvollständige netzartige Verzierung. Das Sporenmaß beträgt
32,5 – 38,5 x 13,5 – 15µm Q 2,5.
Die Paraphysen sind oben leicht erweitert, mit braunem Pigment.
Die Gewebeschicht ist Textura tricata.
Das Sporenmaß, die kurzen Stacheln/Warzen an den Polen und die flache, sehr feine unvollständige Ornamentik sind aus meiner Sicht belastbare Merkmale, die Gyromitra parma von G. martinii trennen.
Den Fund halte ich für Gyromitra martinii.


Eine gute Zeit
Ursula

Manak Roman, 18-05-2024 21:39
Re : Gyromitra parma?
Ursula, thank you again for your work