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27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 17:41

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, same leaf than the last post. The con

27-04-2026 18:05

Lothar Krieglsteiner Lothar Krieglsteiner

... still attached at standing tree. The green con

27-04-2026 17:16

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, moist lying.The conidiomata look like

27-04-2026 12:54

Steve Clements

Bonjour. Ce petit champignon blanc résupiné et

27-04-2026 09:59

Pauline. Penna

Bonjour Can anyone advise me on these pycnidia fo

26-04-2026 21:08

William Slosse William Slosse

Several species of Ramularia occur on Rumex that I

22-04-2026 20:54

Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

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unknown asco on metzgeria
Robin Isaksson, 25-11-2019 21:05
Robin IsakssonSpores round 3.5-4.5 um smooth it seems.
Asci is lugol negative, have 8 spores.
Found on metzgeria furcata, the host seems to be dead where ascomata is found.
Someone have an clue?

Regards

Robin
  • message #60187
  • message #60187
  • message #60187
  • message #60187
Enrique Rubio, 25-11-2019 21:19
Enrique Rubio
Re : unknown asco on metzgeria
Hi Robin
Maybe Pithyella chalaudii (= frullaniae)
Alain GARDIENNET, 25-11-2019 21:20
Alain GARDIENNET
Re : unknown asco on metzgeria

See around Pithyella frullaniae.


Alain

Alain GARDIENNET, 25-11-2019 21:21
Alain GARDIENNET
Re : unknown asco on metzgeria
Hi Enrique, you're too quick for me !
Robin Isaksson, 25-11-2019 21:31
Robin Isaksson
Re : unknown asco on metzgeria
Hi,

Thank you both.
I have to check the spores i cottonblue for warts.

Regards
Enrique Rubio, 25-11-2019 21:46
Enrique Rubio
Re : unknown asco on metzgeria
See Priou's paper: Pithyella chalaudii Priou sp. nov. (Helotiales) pour remplacer P. frullaniae (Chalaud) Döbbeler inval., Ascomycete.org, 11 (3) : 75–76
Hans-Otto Baral, 25-11-2019 22:36
Hans-Otto Baral
Re : unknown asco on metzgeria
Spores of P. chalaudii are warted and I know it only from Frullania. See my drawing.
Robin Isaksson, 26-11-2019 21:29
Robin Isaksson
Re : unknown asco on metzgeria
Hi!
Thx for the nice drawings and text.
And the paper.

it seems like its something else. I think the spores seems to be smooth or almost so, with a big gelcoating almost one um wide around the spores. clearly visible in koh 10. another thing is that the parafyses seems to miss the guttules and last the ap at the host moss is a bit different tho the P. chalaudii found on internet. the color is cream white, not clearly white at least.

Regards
Hans-Otto Baral, 27-11-2019 09:24
Hans-Otto Baral
Re : unknown asco on metzgeria
This is possible, but please consider that your observations are on dead elements, therefore you do not see the guttules in the paraphyses and spores. Therefore I assume that they were guttulate also in your specimen.

Your first pic seem to show fine warts on the spore, or?
Robin Isaksson, 27-11-2019 19:55
Robin Isaksson
Re : unknown asco on metzgeria
Yes it s possible its fine warts on the spores, hard to see for me.
the photos i take shown som fine warts on the pictures but it dont know if ist the bad quality make this.
maybe your right, i should file the collection pithyella chalaudii?


Regards