12-02-2026 14:55
Thomas Læssøehttps://svampe.databasen.org/observations/10581810
11-02-2026 19:28
Lothar Krieglsteiner
on small deciduous twig on the ground in forest wi
25-04-2025 17:24
Stefan BlaserHi everybody, This collection was collected by JÃ
11-02-2026 22:15
William Slosse
Today, February 11, 2026, we found the following R
10-02-2026 17:42
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous me donner
10-02-2026 18:54
Erik Van DijkDoes anyone has an idea what fungus species this m
09-02-2026 20:10
Lothar Krieglsteiner
The first 6 tables show surely one species with 2
09-02-2026 14:46
Anna KlosGoedemiddag, Op donderdag 5 februari vonden we ti
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