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21-12-2025 12:34

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

21-12-2025 09:32

Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

22-12-2025 00:47

Patrice TANCHAUD

Bonsoir, récolte à proximité du milieu dunaire

21-12-2025 21:32

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

21-12-2025 21:40

Isabelle Charissou

Bonjour, j'aimerais connaitre les références de

21-12-2025 21:31

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

21-12-2025 21:31

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

20-12-2025 23:08

Patrice TANCHAUD

Bonsoir, récolte sur sol sablonneux dans l'arriÃ

21-12-2025 01:54

David Chapados David Chapados

Hi,Would it be possible to find the species with t

20-12-2025 15:47

Mirek Gryc

Hi.These grew on pine wood that was heavily covere

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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.