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18-07-2025 23:03

Josep Torres Josep Torres

Hello.Fruitings between 51 and 130 microns in tota

17-07-2025 11:55

Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

15-07-2025 13:27

Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Gernot Friebes

Hi,do you think this collection could be R. ulmari

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Tiny yellow cups on bark
Ethan Crenson, 08-03-2019 17:37
Found in New York City on the detached bark of unknown hardwood.  The cups are .5 - 1.5 mm in diameter, sessile.  Pale yellow when hydrated and becoming yellow-orange as they dry. The outer surface is brownish.  The asci are IKI+ measuring 36-43 x 5µm. The spores are fusiform, some curved, mostly non-septate.  I saw one spore, the longest I measured, that was 1-septate.  Spores measure (7.5-) 9-14 (-16) x (1.5-) 2-3 µm.  Cells of the ectal excipulum are brown, of textura angularis to globulosa.  Medullary excipulum of textura epidermoidea to intricata.  (Excipulum images are 2nd and 3rd to last. Please correct me if I'm wrong)  If anyone has an idea what this is please let me know.  Your input is much appreciated.

Ethan
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Hans-Otto Baral, 08-03-2019 17:51
Hans-Otto Baral
Re : Tiny yellow cups on bark
Do you have living paraphyses? Do they contain refractive vacuoles?
I suppose a Mollisia.
Ethan Crenson, 12-03-2019 17:55
Re : Tiny yellow cups on bark
Zotto, thank you for your reply. Yes, I think I do have living paraphyses with refractive vaucoles indicated in the photos here.
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Hans-Otto Baral, 12-03-2019 18:10
Hans-Otto Baral
Re : Tiny yellow cups on bark
The arrows point to non-refractive vacuoles. between the vacuoles is refractive matter, but this might be dead cytoplasm, These cells appear to me to be in suboptimum (overmature), as seems the whole population.