24-03-2026 21:37
Elisabeth StöckliBonsoir,Sur bois (tronc) très pourri de conifère
25-03-2026 10:35
Hulda Caroline HolteHello,I collected this species growing on a dead b
26-03-2026 15:31
Åke Widgren
Hello,I found this one in October last year, on r
25-03-2026 22:23
Marc Detollenaere
Dear Forum,On a debarked stem of Tilia, we found s
24-03-2026 15:44
Åge OterhalsI hope someone can confirm the name of this collec
25-03-2026 20:53
François BartholomeeusenDear forum members,On 23 March 2026, I found sever
23-03-2026 20:16
Miguel Ángel Ribes
Good eveningI'm unable to identify this Coprotus o
25-03-2026 15:06
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous me confirm
Hypoxylon rubiginosum?
Gernot Friebes,
30-03-2009 20:37
on Saturday I found this pyrenomycet on a branch of Fraxinus, together with Hypoxylon intermedium and Hypoxylon cercidicolum. At first I really was surprised about the striking yellow, somehow powdery interior of the stromata but after testing the KOH-extractable pigments (orange) and the microscopical features everything fits perfectly to Hypoxylon rubiginosum.
I have never seen such yellow colours within Hypoxylon rubiginosum so I would appreciate your experiences about this species!
Best wishes,
Gernot
Andrew N. Miller,
30-03-2009 21:14
Re:Hypoxylon rubiginosum?
Shameless plug:
http://www.discoverlife.org/mp/20q?guide=Xylariaceae
Please see H. rubiginosum. I do remember the yellow color from my collections from the Great Smoky Mountains National Park (TN and NC), USA.
Jack Rogers also reports it in his collections:
http://mycology.sinica.edu.tw/Xylariaceae/frames.asp?qrySectionName=Hypoxylon&qryIDString=h075&qryPart=t
Andy
http://www.discoverlife.org/mp/20q?guide=Xylariaceae
Please see H. rubiginosum. I do remember the yellow color from my collections from the Great Smoky Mountains National Park (TN and NC), USA.
Jack Rogers also reports it in his collections:
http://mycology.sinica.edu.tw/Xylariaceae/frames.asp?qrySectionName=Hypoxylon&qryIDString=h075&qryPart=t
Andy
Gernot Friebes,
30-03-2009 21:32
Re:Hypoxylon rubiginosum?
Hello Andy,
thank you for your response and for the links! Also Jacques Fournier mentions the yellow colour: http://pyrenomycetes.free.fr/hypoxylon/html/Hypoxylon_rubiginosum.htm but I've never seen a collection or a foto with such a striking color before.
Best wishes,
Gernot
thank you for your response and for the links! Also Jacques Fournier mentions the yellow colour: http://pyrenomycetes.free.fr/hypoxylon/html/Hypoxylon_rubiginosum.htm but I've never seen a collection or a foto with such a striking color before.
Best wishes,
Gernot
Andrew N. Miller,
30-03-2009 21:45
Re:Hypoxylon rubiginosum?
Opps! My apologizes to Jacques... his website is certainly much more informative than mine.
Sorry Jacques.
Andy
Sorry Jacques.
Andy
Jacques Fournier,
30-03-2009 22:19
Re:Hypoxylon rubiginosum?
Hi all,
nice to see everybody sometimes agrees!
Bets wishes,
Jacques
nice to see everybody sometimes agrees!
Bets wishes,
Jacques