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10-09-2017 20:58

BERNARD CLESSE BERNARD CLESSE

Sur laissée de sanglier, en pessière fraîche.

20-09-2017 11:27

Edvin Johannesen Edvin Johannesen

This Hymenoscyphus (?) was found on Gymnocarpium d

13-09-2017 08:09

Ethan Crenson

Hello,In the Bronx, Pelham Bay Park, New York, US.

20-09-2017 13:32

Viktorie Halasu Viktorie Halasu

Hello forum,last week I finally found a Smardaea b

16-09-2017 12:45

Lothar Krieglsteiner Lothar Krieglsteiner

... collected this week in Nature Reserve "Žofín

18-09-2017 23:14

Philippe Louasse

Bonsoir à tous, Les 9èmes Journées mycologique

12-08-2014 11:56

Zuzana Egertova Zuzana Egertova

Hello, in this ascomycete everything seems to fit

18-09-2017 17:54

Rubén Martínez Gil Rubén Martínez Gil

Hola a todos. Estoy buscando este artículo: Med

21-08-2017 01:44

Ethan Crenson

In the Green Mountains of Southern Vermont, US. 

17-09-2017 12:05

Rubén Martínez Gil Rubén Martínez Gil

Hola a todos. Subo unas fotos de una Rutstroemia?

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Ascuswall amyloid genus uncertain
Lieve Deceuninck, 03-09-2017 17:26
Lieve Deceuninck

Dear Forummembers


I've a problem with an asco on riched soil (flowerpot), sclerotia not observed.



Apothecium: 2- 8 mm diam.; 1- 6 mm high, first turbinate then turbinate to discoid narrowed  into a tapering stipe.; disc with a depression; pink brown; margin even and a little outwards reflexed; outside flocculose, dark pink brown.


Section:
-medular excipulum: elongated cells,  tended to textura epidermoidea
-ectal excipulum: textura subglobosa to textura angularis : outside with yellowbrown elongated excipulumcells; broadened at the top
Margin: transition between paraphyses and elongated excipulumcells:-7 septate ; cilindric,  subclavate, subcapitate; yellowbrown


Spores in water : 16-20(22)x(9)9.5 10 µm : smooth (also in cottonblue); eggutulate but small polair zone with diffuse droplets
Asci: 250-300x14-16 µm operculate; ascuswall amyloid in Melzers reagens;(ascustop didn't shows the typical Peziza darkblue top).
Paraphyses: agglutinated,cilindric;  6µm ; top broadened to-8 µm; light brown vacuolair pigment; -5 septate


Discussion:
Peziza fimeti: typical dark blue ascustop is missing , also without oildrops but different in medular excipulum? Does there exist a Peziza fimeti complex as a friend of my give me that suggestion?
Pseudombrophila-like but this genus is without amyloid ascuswall and asci < 200 µm
Pachyella: different hair outgrowths, spores with two oildrops


Thanks for any reaction.

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Hans-Otto Baral, 03-09-2017 17:44
Hans-Otto Baral
Re : Ascuswall amyloid genus uncertain
Hi Lieve
I am surprised about the obviously multinucleate spores containing at least 4 nuclei. I remember this as a rare feature in Pezizales, occurring in Sarcoscyphinae and perhaps a few other groups. In Syllabus I wrote for both Ascobolaceae and Pezizaceae the the spores were uninucleate.
Maybe there occur exceptions....
Zotto
Nicolas VAN VOOREN, 03-09-2017 18:22
Nicolas VAN VOOREN
Re : Ascuswall amyloid genus uncertain
This fungus reminds me Lepidotia hispida (sn. Peziza quelepidotia) because of the spore shape and the spore content (and also the amyloid reaction of asci) and the presence of a stipe, but there are some differences:
- color of apothecia;
- size of ascospores;
- pattern of amyloid reaction;
- asci with croziers.

No idea of what it can be, maybe an exotic species...
Lieve Deceuninck, 04-09-2017 09:52
Lieve Deceuninck
Re : Ascuswall amyloid genus uncertain
Hi Zotto and Nicolas
Thanks for your interesting addtions and info.

Lieve