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28-07-2025 04:59

Richard Droker

Growing on resin (over moss on Tsuga heterophyll)l

28-07-2025 12:34

Enrique Rubio Enrique Rubio

Hi to everybody.I would appreciate any ideas about

13-06-2025 09:41

Josep Torres Josep Torres

Hello.A cerebriform ascomycete sprouting scattered

13-06-2025 16:34

Andgelo Mombert Andgelo Mombert

Bonjour,Un petit discomycète qui me résiste. Il

24-07-2025 19:02

Castillo Joseba Castillo Joseba

De esta mañana en tronco caido de Haya A ver si

21-07-2025 19:22

Ethan Crenson

Hello all,  Here is an Orbilia found by a friend

14-07-2025 11:20

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

18-07-2025 23:03

Josep Torres Josep Torres

Hello.Fruitings between 51 and 130 microns in tota

17-07-2025 11:55

Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

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Orbilia on herbaceous stems (Galium?)
Enrique Rubio, 21-10-2021 21:09
Enrique RubioI would be grateful for an opinion on this Orbilia which forms tiny, pulvinate, non-flattened ascomata on herbaceous stems, most probably Galium mollugo, at 1700 m altitude. Secretions can be seen at the margins but no true glassy processes.
Many thanks in advance.
  • message #70405
  • message #70405
  • message #70405
Hans-Otto Baral, 21-10-2021 21:19
Hans-Otto Baral
Re : Orbilia on herbaceous stems (Galium?)
Could you please send me in higher resolution?

Sounds like O. subtrapeziformis, but the spores are not very acute above and the herbaceous substrate is unusual.
Enrique Rubio, 21-10-2021 21:27
Enrique Rubio
Re : Orbilia on herbaceous stems (Galium?)
Hi Zotto
Sent by wetransfer. The collector was Jesús.
Hans-Otto Baral, 21-10-2021 21:54
Hans-Otto Baral
Re : Orbilia on herbaceous stems (Galium?)
Thanks! The problem is always to distinguish O. subtrapeziformis and O. obtusispora. O. trapeziformis is excluded by spoore length, so I tend to believe this is O. obtusispora.
Hans-Otto Baral, 22-10-2021 08:28
Hans-Otto Baral
Re : Orbilia on herbaceous stems (Galium?)
I tried my key and unequivocally arrive at O. obtusispora, except that this would be the first sample on a herb.

But: is the substrate correct? couldn't this be a very thin, very rotten woody twig?
Enrique Rubio, 24-10-2021 09:28
Enrique Rubio
Re : Orbilia on herbaceous stems (Galium?)
Hi Zotto
It was undoubtedly a herbaceous stem. The only doubt is whether it was a Galium or not.
Hans-Otto Baral, 24-10-2021 10:37
Hans-Otto Baral
Re : Orbilia on herbaceous stems (Galium?)
I cannot imagine that a rotten Galium stem looks like this but I may be wrong.
Enrique Rubio, 24-10-2021 11:02
Enrique Rubio
Re : Orbilia on herbaceous stems (Galium?)
There were many stems of Galium mollugo on the site and very close by, and although I cannot be sure that they belonged to this species, the substrate was certainly not woody at all.