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26-09-2024 17:25

Hans-Otto Baral Hans-Otto Baral

Does someone have a pdf of this paper? I have it

27-09-2024 17:01

Stephen Plummer

A poor photo, but is there enough here for someone

25-09-2024 22:18

Bometon Javier Bometon Javier

Apotecios 100 y 350 um, estipitados.Pararafisis la

25-09-2024 14:24

B Shelbourne B Shelbourne

• Macro and habitat suggest Rutstroemia, and pos

23-09-2024 17:24

Karen Poulsen

Hi there, I found a few very small apothecia on o

24-09-2024 18:27

Pierre-Yves Julien

Récolte le 01/09/2024 – Paris (75) – France â

25-09-2024 20:07

François Bartholomeeusen

After I dipped a fallen Ilex leaf in water for a d

22-09-2024 20:24

Robin Isaksson Robin Isaksson

Dear all, I did found this one on on S. acauli

23-09-2024 20:46

B Shelbourne B Shelbourne

• Macro and habitat suggest Gelatinodiscaeae.•

24-09-2024 11:35

Peter Welt Peter Welt

Search Looking for an item again. Who can help? T

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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

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Stip Helleman, 01-08-2016 01:21
Stip Helleman
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
Kosonen Timo
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
Stip Helleman
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
Kosonen Timo
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

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