Accès membres

Mot de passe perdu? S'inscrire

15-09-2021 12:41

Mirek Gryc

Hello allDear forum members, are my suspicions cor

16-09-2021 22:08

jean claude chasle

Bonsoir, Récolté en milieu humide sur brindille

15-09-2021 19:48

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur branche morte d'Alnus alnobetula, en

16-09-2021 12:07

Castillo Joseba Castillo Joseba

De ayer en corteza de fagusA ver si hay alguna sug

15-09-2021 17:52

Ueli Graf Ueli Graf

The ostropalean fungi (Mycotaxon) 1977 von Martha

12-09-2021 12:18

Andgelo Mombert Andgelo Mombert

Bonjour, Sur tige morte d'Equisetum sp., vers 200

14-09-2021 19:26

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur tiges mortes d'Epilobium angustifoli

14-09-2021 19:01

Juuso Äikäs

I found some small Lachnum-like fungi a couple day

09-09-2021 15:18

Maria Plekkenpol

Hello,On pieces of acorn cap buried in the ground

14-09-2021 19:41

Enrique Rubio Enrique Rubio

Could someone give me a copy of this item?Coniocha

« < 1 2 3 4 5 > »
Search for a discomycete genus
Franz Berger, 30-07-2021 18:42
Franz BergerI am searching for an appropriate genus (Biatorella is only a "work" name)

Growing on decorticated stump of Picea (Alps, 1300 m). Black glossy ascocarps up to 0,4 mm, aggregated, with prominent margin; 
Epihymenium brown, K+ olive, hymenium 40 µm, hyaline, Lugol neg, paraphyses only peripherically branched, with dark brown caps, 3 µm, hypothecium hyalin,
excipulum of radiate hyphae, outer part dark brown, Lugol + olive, asci clavate 30 x10 µm, I think unitunicate, J-, no ring structure (not opegraphoid)
with > 100 aseptate ascospores, hyaline, bacillliform, 2,5 – 3 x 1 µm,

As there are Trebouxia algae below apothecia in substrate, densely infiltrated with brown hyphae with sphaerical elements (Bispora like) , but no haustoria, it may ba also wealy lichenezed, but does not develop an organiozed thallus; but there is no fitting taxon in lichennology.

I would also be of help to let me know, if there are some ascomycete gerena with asci containing innumerous ascospores like aboce one.
Thanks for all help Franz
  • message #69666
Hans-Otto Baral, 30-07-2021 20:26
Hans-Otto Baral
Re : Search for a discomycete genus
This is Symbiotaphrina microtheca, earlier as Tromeropsis.

Look this paper here:

Baral, H.O.; Weber, E.; Marson, G.; Quijada, L. (2017). A new connection between wood saprobism and beetle endosymbiosis: the rarely reported saprobic discomycete Tromeropsis is congeneric with the symbiotic yeast Symbiotaphrina (Symbiotaphrinales, Xylonomycetes) and two asexual morphs misplaced in Hyphozyma. – Mycol. Progr. 17: 215–254. – doi 10.1007/s11557-017-1340-y

I would be glad to have coordinates and other data. The species is rather widely distributed but not easily found.
Hans-Otto Baral, 06-08-2021 07:51
Hans-Otto Baral
Re : Search for a discomycete genus
Hi Franz

did you overlook my answer?

Franz Berger, 06-08-2021 22:36
Franz Berger
Re : Search for a discomycete genus
Vielen Dank, Zotto, hab das erst heute gesehen, weitere Daten demnächst, bin im Ausland.herzliche Grüsse
Franz Berger, 08-08-2021 11:04
Franz Berger
Re : Search for a discomycete genus
dear Zotto!

See here the data of Symbiotaphrina on Picea wood.

Österreich, Niederösterreich, Bezirk Scheibbs, Göstling, Wildnisgebiet "Dürrenstein", Wanderweg von der Ybbstaler Hütte auf den Noten, 1540 m, 47°47´ 53´´N, 15°01´40´´E, auf entrindetem Fichtenstubben, leg. F.Berger 7.7.21, Herbar Be 35726.
Hans-Otto Baral, 08-08-2021 11:29
Hans-Otto Baral
Re : Search for a discomycete genus
Danke! Aber es gibt sonst keine mikroskopischen Daten wie Sporengröße? Ah sorry, die sind ja genannt.