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03-04-2026 17:11

Bohan Jia

Lastly, I have found these small apothecia on a co

31-03-2026 21:18

Miguel Ãngel Ribes Miguel Ángel Ribes

Good evening. oes anyone have the original descrip

31-03-2026 20:57

Stefan Blaser

Hello everybody, I hope somebody can help me with

26-03-2026 15:31

Ãke Widgren Åke Widgren

Hello,I found this one in October last year, on r

31-03-2026 16:20

Mlcoch Patrik Mlcoch Patrik

Hello, Please about help with determination. On

31-03-2026 08:19

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

30-03-2026 12:18

Sylvie Le Goff

BonjourRécolté sur la base de Pteridium aquilinu

30-03-2026 12:03

William Slosse William Slosse

Hello all,On 27/03/26, in Kraaiveld in Wingene (Be

25-03-2026 10:35

Hulda Caroline Holte

Hello,I collected this species growing on a dead b

28-03-2026 17:41

Louis DENY

Bonjour forum,Mollisia trouvée sur tige de Molini

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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.