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28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

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William Slosse William Slosse

Good evening all,On March 4, 2026, I found the fol

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Hulda Caroline Holte

Hello, I found and collected this species growing

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Alain GARDIENNET Alain GARDIENNET

Hi forum, I'm now looking for another reference c

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William Slosse William Slosse

Good evening everyone,On March 4, 2026, I found th

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François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

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Salvador Emilio Jose

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Miguel Ãngel Ribes Miguel Ángel Ribes

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Helminthosphaeria on Quercus wood
Enrique Rubio, 04-08-2021 19:26
Enrique RubioDo you have any ideas for this setose Helminthosphaeria that was growing on decorticated Quercus petraea wood at 1000 m of altitude near ascomata of Orbilia xanthostigma? The aseptate ascospores have at least one apical pore.
Many thanks in advance
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Andrew N. Miller, 04-08-2021 22:13
Andrew N. Miller
Re : Helminthosphaeria on Quercus wood
Maybe Helminthosphaeria heterotricha?

Andy
Enrique Rubio, 05-08-2021 14:13
Enrique Rubio
Re : Helminthosphaeria on Quercus wood
Hi Andy
In one of your last keys (Mycologia, 106(3), 2014) I can read:
Ascomata setose, asci 4-8-spored, ascospores remaining hyaline, 8-12 x 5-6 mm . . . . . . . . . . . . ............... Helminthosphaeria heterotricha.


Of course the ascospores of my collection were not hyaline.

Andrew N. Miller, 05-08-2021 15:58
Andrew N. Miller
Re : Helminthosphaeria on Quercus wood
Hi Enrique,
 
   I would be happy to sequence this for you if you send me the collection.

Best,
Andy


Dr. Andrew Miller
University of Illinois
Illinois Natural History Survey
1816 South Oak Street
Champaign, IL 61820-6970
phone: 001 (217) 244-0439