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16-01-2020 23:29

Andreas Gminder Andreas Gminder

Hello,yesterday we found a small salmon coloured t

17-01-2020 06:04

Ethan Crenson

Hello everyone,From NYC, a friend found a small br

14-01-2020 22:02

Stip Helleman Stip Helleman

Hallo, can someone helpe getting this article?Gre

15-01-2020 22:42

Ethan Crenson

Hello, Last weekend in New York City I collected

15-01-2020 19:00

Angel Pintos Angel Pintos

Hello, anybody has ?Serenomyces associated with pa

15-01-2020 18:14

jean claude chasle

Bonsoir,Récolté le 7 / 01 / 2020, sur tige morte

15-01-2020 20:10

Mlcoch Patrik Mlcoch Patrik

Please about determination this interesting collec

15-01-2020 19:48

Stip Helleman Stip Helleman

Dear all, on behalf of our collegue Ricardo Galan

13-01-2020 22:10

Thorben Hülsewig

Hi there,yesterday i found this Nectria-like fungu

15-01-2020 15:30

Benko Gabor Benko Gabor

Dear Members! Can you help me please with this? I

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Parorbiliopsis spec.?
Andreas Gminder, 16-01-2020 23:29
Andreas GminderHello,

yesterday we found a small salmon coloured tiny ascomycete on an attached branch of Salix. I was certain to have found an Orbilia, but to my surprise the microscopy revealed something totally different.
I at first even wondered if this could be an operculate ascomycete, but am quite convinced that it is inoperculate.

Asci appr. 100 x 14,5 µm, with croziers (or being pleurorhynch), IKI negative
Spores appr. 15,5 x 7,5 µm, with many medium sized and small oil drops, in IKI with two big glycogen deposites, becoming one-septate when germinating
Paraphyses filiform, septate, once or twice branched and often somewhat curved, some with an amorphes mass at the tip
Excipulum of a kind of textura angularis with quite massive cell walls, giving it an appearance of a gelatinous texture.

Growing on attached branch of Salix caprea, together with Hyalorbilia juliae and Lecanidion atratum, Goslar, Göttingerode, östl. Langenberg, 15.01.2020

Any suggestions very welcome :-)

all the best, Andreas and Sylvie
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Hans-Otto Baral, 17-01-2020 07:52
Hans-Otto Baral
Re : Parorbiliopsis spec.?
Hi Andreas & Sylvie

I conclude you mean ca. 0.5 mm diam. (some people say small for 5 mm).

This is clearly Helotium uvidulum, a species that I have placed in my Laetinaevia folder although the sequence we have does not cluster with L. carneoflavida. Whether it would cluster with L. lapponica, the type species of Laetinaevia, is unclear because of lack of a sequence.

This species is quite frequent and may occur together with Orbiliaceae. Its name uvidulum (= hydrophilous) is strange but I studied the type.

Zotto
Andreas Gminder, 17-01-2020 07:58
Andreas Gminder
Re : Parorbiliopsis spec.?
Dear Zotto

thanks a lot! I have not heared from this species before and wouldn't have searched in Letinaevia.

And yes, small in this case meant 0,3 mm :-)

all the best,
Andreas