Hyalopeziza - Forum ASCOFrance

27-04-2026 20:52

Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

27-04-2026 18:48

Micropodia pteridina?

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 17:41

another anamorph on monocotyleous remains from Portugal

Lothar Krieglsteiner

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

27-04-2026 18:05

bright green minute anamorph on Citrus aurantius-twig from Portugal

Lothar Krieglsteiner

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

27-04-2026 17:16

anamorph on monocotyleous leaves from Portugal

Lothar Krieglsteiner

.. Algarve, moist lying.The conidiomata look like

27-04-2026 12:54

Spiral conidial crust

Steve Clements

Bonjour. Ce petit champignon blanc résupiné et

27-04-2026 09:59

Microdiplodia henningsii

Pauline. Penna

Bonjour Can anyone advise me on these pycnidia fo

26-04-2026 21:08

Ramularia sp ?

William Slosse

Several species of Ramularia occur on Rumex that I

22-04-2026 20:54

Pyrenopeziza on monocot.

Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

lachnum pudicellum

Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

Hyalopeziza

Elisabeth Stöckli, 31-07-2016 23:27

Bonsoir,

Encore une espèce d'altitude (2'335m), sur fleurs mortes de Cirsium spinosissimum
apothécies 0.25-0.5mm de diamètre, entièrement orange, surface externe et marge couvertes de poils, asques 75-90x9-12µm, octosporés, IKI rouge, spores 9-12x4.5-5µm (peu de spores en dehors des asques), 0-1x septées, lisses, hyalines, paraphyses filiformes et septées, poils réfringents jusqu'à 65µm, KOH 3% aucun changement.

Merci d'avance pour votre avis.

Elisabeth

Stip Helleman, 01-08-2016 01:21

Re : Hyalopeziza

Dear Elizabeth,
the hairs look to me more like Olla or Unguiculella with only a lumen at the base.
Please check the stability of the glassy parts of the hairs in a higher KOH concentration
(> 5% is reliable) If you do not have higher concentration try KOH boiling and see if hairs are losing refractiveness and become permeable to Congo Red or Melzer.
Are asci with croziers, I can not see from your photos.

cheers,
Stip

Kosonen Timo, 01-08-2016 09:21

Re : Hyalopeziza

Olla seems unlikely, but that should be easy to rule out with KOH/MLZ just as Stip suggested. Maybe some hairs are somewhat typical "Unguiculella", but then I found Hyalopeziza latispora from Raitviirs book (2004). Never seen the species, thou. What do you think?

Timo

Stip Helleman, 01-08-2016 23:40

Re : Hyalopeziza

Hi Timo,
never seen this species too but it fits very well, perhaps this alpine finding even could be regarded as H. schachdarica as Raitviir suggests.
from the original schachdarica description.
pili 35-50 x 1.5-2.5 asci 80-100 x12-18 spores 11-13,5 x 4-6 (this 18 um wide asci appear very strange to me and nothing about Iodine reaction or croziers)
regards,
Stip

Kosonen Timo, 02-08-2016 11:25

Re : Hyalopeziza

Maybe this goes without saying, but If you have the time Elisabeth and the sample is still fresh, please make good annotations both water/alive and in dead state too!

T

Elisabeth Stöckli, 02-08-2016 21:23

Re : Hyalopeziza

New collection from the same site, very common on old flowers of Cirsium spinosissimum, young apothecia orange, later yellow ocher.

MLZ-/IKI red/KOH+IKI blue, still glassy hairs in KOH 5%, croziers+

Elisabeth

Accès membres

Forum AscoFrance