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04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

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one more disco on resin
Guy Marson, 02-12-2014 10:27
Dear all,
I found an unknown (to me) discomycete species on resin of Pinus sylvestris. Bright yellow, 0.25 mm in diam. Although I only got very sparse material, it is just enough for a little portrait. The remaining stuff will be sequenced.
Spores: 16-22 x 6-7.5 µm, one celled (may be two-celled, when overmature). Asci (IKI neg.) 135 - 155 x 18 - 22 (fully turgescent). Hairs with a yellow pigment, dissolving in KOH, paraphyses small, not very capitate, septate, no exudates visible.. Any hint? Thanks in advance.
Cheers,
Guy
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Guy Marson, 02-12-2014 10:30
Re : one more disco on resin
more pics ..
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Guy Marson, 02-12-2014 10:42
Re : one more disco on resin
and more pics..
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Gernot Friebes, 02-12-2014 10:48
Re : one more disco on resin
Hi Guy,

that reminds me of this "Crumenulopsis" sp. that I found twice on branches of Pinus sylvestris. I showed my first find here: http://ascofrance.com/search_forum/8587. Maybe sequencing will tell us more?

Best wishes,
Gernot
Guy Marson, 02-12-2014 10:53
Re : one more disco on resin
tnx a lot
Guy Marson, 02-12-2014 11:02
Re : one more disco on resin
Thanks Gernot for your hint (und für den Wink mit dem Zaunpfahl;-).
I up-loaded more than 20 pics here, but can't see them.

Cheers,
Guy
Hans-Otto Baral, 02-12-2014 11:04
Hans-Otto Baral
Re : one more disco on resin
Yes of course, it is this marvellous discomycete without a generic and specific name.

But isn't it bark on which it grows? Probably close to resin, but is the resin blackened or fresh?

Yellow exudate is abundant and characteristic of this fungus, also on the hardly inflated paraphyses. Maybe you meant that no visible contents are in the paraphyses?

Yes, a sequence will hopefully lift the mystery about this fungus.

Zotto
Guy Marson, 02-12-2014 11:34
Re : one more disco on resin
another try to ad the missing pics
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Guy Marson, 02-12-2014 11:37
Re : one more disco on resin
ok, and some more pics..
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Guy Marson, 02-12-2014 11:41
Re : one more disco on resin
6 more pics
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Guy Marson, 02-12-2014 11:44
Re : one more disco on resin
and the last pics
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Hans-Otto Baral, 02-12-2014 15:17
Hans-Otto Baral
Re : one more disco on resin
I think this KOH-solubility of the exudate could run under ionomidotic.