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30-05-2026 21:12

Philippe PELLICIER

Sur branche de mélèze (Larix) près de la neige,

25-05-2026 16:35

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,J'ai trouvé récemment,

29-05-2026 15:35

daniel FERRE

Bonjour à tous,Je voudrais votre aide pour cette

28-05-2026 16:15

James Mitchell

Hello,Does anyone have the original publication of

28-05-2026 11:06

Thomas Læssøe

https://svampe.databasen.org/observations/10596750

23-05-2026 11:44

Charles Grapinet Charles Grapinet

Hello, I am having trouble identifying this copro

25-05-2026 16:44

François Bartholomeeusen

Hi forum members,During an excursion organised by

26-05-2026 21:25

Dirk Gerstner

Hello everyone, I'm completely stumped by this li

26-05-2026 22:44

Ethan Crenson

Hi all, I think I have Incrucipulum capitatum her

22-05-2026 14:44

Lothar Krieglsteiner Lothar Krieglsteiner

in unripe condition citrine yellow, then soon fadi

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Hairy Bitunicate on living Viburnum lantanoides leaves
Adrian Carter, 29-06-2011 13:46
Hello All;


Two days ago I collected this on the underside of living leaves of Viburnum lantanoides at the Caledonia Gorge in New Brunswick, Canada.


The ascomata are subglobose and quite hairy. The ascomata sit superficially amongst the leaf trichomes and on the surface. There is no obvious leaf spotting.

Ascomata: black, subglobose (250x300u) and hairy, superficial amongst leaf trichomes. Peridium forming a textura angularis. Hairs are tortuous, brown, septate and smooth.
Asci: broadly clavate, 135-145x24u, bitunicate
Pseudoparaphyses: not evident
Spores: hyaline, broadly fusoid, 5-7 septate (large globules in each cell), 50-60x7-8u, often constricted at the 4th septum.


It seems to be common in this area but I can't find a genus for this entity. In the meantime I call it Byssosphaeria sp.

Any suggestions would be appreciated.

Sincerely.

Adrian Carter
  • message #15673
  • message #15673
  • message #15673