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29-12-2025 23:20

Sordariomycetes
éric ROMERO éric ROMERO

Bonjour, Une récolte du mois d'août 2025 en tou

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I found this unknown star form by the microscopy o

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Propolis sp. on Pinus sylvestris
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Hello, I found and collected this propoloid ascom

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En Rosmarinus
Blasco Rafael Blasco Rafael

Hola, me pueden ayudar con esta muestra.Recogida s

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asco imparfait et oïdium sur tige morte de Polygonatum odoratum
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Small disco on sclerotia? on decorticated wood
Masanori Kutsuna, 11-11-2014 00:47
Hello everyone,

I found small discos on sclerotia? on decorticated wood last weeks in Japan.

Sclerotioid body on the surface (or semi-immersed) of rotten, decorticated, trunks of Quercus sp., 1-3 mm. long.
Asci 97-125 x 6.2-8, I-.
Paraphyses branched, curved at the tip
Ascospores ellipsoid, 8.3-14.3 x 2.2-3.0


bar = 100 microns (section1) / 10 microns (others)


Is this a parasitic disco on sclerotia of other species?


Thanks
Masanori Kutsuna

  • message #32048
  • message #32048
  • message #32048
  • message #32048
  • message #32048
  • message #32048
Hans-Otto Baral, 11-11-2014 09:36
Hans-Otto Baral
Re : Small disco on sclerotia? on decorticated wood
My first idea was Psilachnum lanceolatoparaphysatum, because the apos sit there also on a black stroma, but that is an anamorph. Only the ascospores are similar otherwise you have a totally different species. No idea of the genus.

The apos are only ca. 200 µm diam?
Masanori Kutsuna, 12-11-2014 00:22
Re : Small disco on sclerotia? on decorticated wood
Thank you for your comment, Zotto.

Yes, The apos are about 200-500 µm diam.

Kutsuna