Accès membres

Mot de passe perdu? S'inscrire

13-03-2025 19:16

Enrique Rubio Enrique Rubio

By means of these photographs could anyone identif

13-03-2025 15:31

Pavel Jiracek

I wonder if someone can help with identification.

13-03-2025 15:54

Pavel Jiracek

Everything looks good for L.virgineum except for t

13-03-2025 16:50

Harald Homa Harald Homa

Good evening Another find I'm looking for help wi

13-03-2025 09:25

Yanick BOULANGER

BonjourJe poste ce pyrénomycète, pas pour Chaeto

12-03-2025 17:54

Karl Soler Kinnerbäck

Hi all!Do you agree with Scutellinia hyperborea? P

13-03-2025 19:16

Enrique Rubio Enrique Rubio

By means of these photographs could anyone identif

11-03-2025 13:10

Blasco Rafael Blasco Rafael

Hola, alguna idea para esta especie ??Recogida sob

13-03-2025 19:16

Enrique Rubio Enrique Rubio

By means of these photographs could anyone identif

12-03-2025 09:32

Yanick BOULANGER

BonjourEncore une fois, j'ai besoin de votre aide

« < 1 2 3 4 5 > »
Hypoxylon rubiginosum?
Gernot Friebes, 30-03-2009 20:37
Hello,

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
  • message #7287
Andrew N. Miller, 30-03-2009 21:14
Andrew N. Miller
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
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
Andrew N. Miller, 30-03-2009 21:45
Andrew N. Miller
Re:Hypoxylon rubiginosum?
Opps! My apologizes to Jacques... his website is certainly much more informative than mine.

Sorry Jacques.

Andy
Jacques Fournier, 30-03-2009 22:19
Jacques Fournier
Re:Hypoxylon rubiginosum?
Hi all,
nice to see everybody sometimes agrees!
Bets wishes,
Jacques