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12-07-2020 17:42

Juuso Äikäs

I found a lot of these growing gregariously on dea

12-07-2020 21:17

BERNARD CLESSE BERNARD CLESSE

Bonsoir à toutes et à tous,Que pensez-vous de ce

12-07-2020 19:23

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur bois mort décortiqué, immergé dan

12-07-2020 16:30

Gilbert MOYNE

Bonjour, Une récolte qui me pose quelques probl

09-07-2020 00:39

Valencia Lopez Francisco Javier

Hola a todosEncontré este curioso ascomycete a me

07-07-2020 13:34

Sergey Markov

I found this peziza sp. on loamy soil - on the gro

10-07-2020 17:50

Garcia Susana

Hola, Me gustaría vuestra ayuda para identificar

08-07-2020 00:01

Shane John

I would ask the indulgence of the group to perhaps

08-07-2020 16:47

Chris Yeates Chris Yeates

Bonjour tous While searching for the downy mildew

10-07-2020 14:26

Thomas Læssøe

Anybody in the know of eg Pseudoneottispora?See: 

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Trichopeziza sp.?
Stefan Blaser, 02-03-2014 10:01
Hello everybody

It would be great to hear your opinion on this:


Substrate: Decorticated, deciduous wood


Fruitbodies: Up to 1 mm in diameter. Disc brown to slightly rose in age. Hairs in tufts, whitish (see photos).


Micro: Asci 60-75 x 7-9 µm, without crosiers, IKI- also after KOH pretreatment. Spores 14-22 x 2.8-3.5 µm, aseptate. Hairs up to 200 x 5 µm, hyaline to yellowish, thick walled, with resinous, brownish excretions. Paraphyses broadly lanceolate, up to 7 µm enlarged, often very fine granules on the apical cell.


Thank you for any help


Stefan

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Enrique Rubio, 02-03-2014 12:20
Enrique Rubio
Re : Trichopeziza sp.?

Hi Stefan


It looks like Trichopeziza 'perrotioides' un undescribed species of the genus Trichopeziza

Stefan Blaser, 02-03-2014 17:30
Re : Trichopeziza sp.?
Hi Enrique

Thanks a lot for your answer. Such a nice species and still undescribed. What a pity...

Best
Stefan
Hans-Otto Baral, 03-03-2014 11:46
Hans-Otto Baral
Re : Trichopeziza sp.?
Hallo Stefan

I hesitated here to answer because I struggled with the spores. Those of T. perrotioides are less tapered at the ends and often slightly allantoid, dn they were never such long: *(8-)10-16(-17.5) x 2.7-3.4(-3.7) ?m. I saw a high number of records or images, and the species shows a certain variability, including colour.

Typical besides inamyloid asci without croziers are the warted deposits on the paraphyses. These are visible on your photos, though rather inconspicuous. I am not sure what else could be tested in your fungus. Yes, it is strange that so far no name could be found for it in the literature, though it is full of unclarified names.

I would like to note  the collection data of this record, if you don't mind. At present, I would not include it in the species but only mention in my prospected paper.

For the host you have no idea? Possibly the wood anatomy could help?

Zotto
Stefan Blaser, 03-03-2014 22:04
Re : Trichopeziza sp.?
Hallo Zotto

Danke für die Antwort. Die Sporenlänge war im grossen und ganzen bis 18 mü, mit Ausnahmemessungen von 19 und 22 mü. Die Sporen stammten aber auch von einem etwas überreifen FK.

Funddaten: 8.2.2014, Kanton Bern, Trubschachen, 822 m.ü.m., Koordinaten: 630825 / 196515

Substrat: Höchstwahrscheinlich Fraxinus

Liebe Grüsse
Stefan
Alain GARDIENNET, 03-03-2014 22:07
Alain GARDIENNET
Re : Trichopeziza sp.?
Hans-Otto Baral, 03-03-2014 23:39
Hans-Otto Baral
Re : Trichopeziza sp.?
Hallo Stefan

Danke!

Fraxinus lässt sich zweifelsfrei erkennen an einem Querschnitt oder -bruch: Auffällig ringporig und Spätholzgefäße in kleine Gruppen oder gar einzeln.

Herbarnummer wäre auch noch gut, schlimmstenfalls muss man den Fund irgendwann mal nachmikroskopieren, falls die Zweifel bleiben...

Zotto
Stefan Blaser, 05-03-2014 07:48
Re : Trichopeziza sp.?
Hallo Zotto

Herbarnummer: SB2014010

Gruss
Stefan