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23-12-2025 11:27

Louis DENY

bonjour forum,sur débris de bois de feuillu (acer

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Hi. „I doubt it is possible to identify this ti

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Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

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Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

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Plicaria cf trachycarpa
Francisco SÁNCHEZ, 07-02-2016 21:34
Francisco  SÃNCHEZCollect 31/01/2016, on burnt ground, under burning tree ( Eucalyptus globulus).
Apothecia 4-7 mm. dark brown hymenium; subconcolor outer face with darker furfuraciones, which darkens as it ripens. white flesh that secretes increased serous latex white, unchangeable color.
Excípulo ectal globular texture. Excípulo medular inferior intricately-globular texture. Excípulo medular superior pigmented intricate texture.
Paraphyses capitate covered brownish mucus.

ASCAs cylindrical, hemiamiloydes (IKI).
(96.1) 98.5 - 110.3 (113.5) x (6) 6.1 - 6.8 (6.9) µm
Me = 105.3 x 6.4 µm ; 


Spores with truncated warts 1-1.2 microns in height.
ESPORAS X 1000 AGUA
(10.9) 11.2 - 12.2 (12.7) x (10.3) 11 - 12 (12.3) µm
Q = 1 (1.1) ; N = 47
Me = 11.7 x 11.5 µm ; Qe = 1

What do you think?

Regards. 

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Luc Bailly, 07-02-2016 23:39
Luc Bailly
Re : Plicaria cf trachycarpa
Hello Francisco,

The ornaments of the spores look truncated, which would fit fine with Plicaria trachycarpa. The size of spores fits well also, and the ecology as well (burnt places).

Cheers - LUC.
Francisco SÁNCHEZ, 07-02-2016 23:47
Francisco  SÃNCHEZ
Re : Plicaria cf trachycarpa
Luc, Thank you for your opinion.

Do you think of the presence of white latex immutable. It is also characteristic of this species?

Another question is about the proper naming of layers excípulo . I can discern three layers : an outer layer of pigmented somewhat globular texture , a middle layer of mixed texture intricanda - globular , pigmented top layer and intricate texture. Could you talk ectal excípulo lower , middle and upper ? Or of  excípulo ectal - excípulo medular medio- excípulo medular superior? 

Viktorie Halasu, 08-02-2016 19:14
Viktorie Halasu
Re : Plicaria cf trachycarpa
Beneath the asci there is distinct brown subhymenium (or "hypothecium"), then medúlla (medullary excipulum), then ectal excipulum (outer excipulum). Sometimes the ectal excipulum is differentiated into inner and outer layer, e.g. in genus Helvella. I'm not sure, but perhaps medullary excipulum can be differentiated too, in a more complex structure.
Francisco SÁNCHEZ, 09-02-2016 08:29
Francisco  SÃNCHEZ
Re : Plicaria cf trachycarpa
Thank, Halasu.
Luc Bailly, 09-02-2016 23:16
Luc Bailly
Re : Plicaria cf trachycarpa
Hello Francisco,

Re: latex. There's nothing about it in the reference I own, but all the other features of your sample match with the description.

Cheers - LUC.
Francisco SÁNCHEZ, 09-02-2016 23:54
Francisco  SÃNCHEZ
Re : Plicaria cf trachycarpa
Recently I studied a coleccion of Plicaria endocarpoides and watched latex too, whitish  that changed to green soon . I have not found any reference to the latex presence in Plicaria.