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31-07-2016 23:27

Elisabeth Stöckli

Bonsoir, Encore une espèce d'altitude (2'335m),

28-07-2016 22:28

Elisabeth Stöckli

Bonsoir, Sur bois mortes de Calluna vulgaris (Lan

01-08-2016 21:24

Bernard CLESSE Bernard CLESSE

Alors là, il n'y a vraiment plus du tout de saiso

31-07-2016 23:53

Bometon Javier Bometon Javier

Esporas 16-18 X 7-9 um, septadas, Lbs.Ascas 130-15

01-08-2016 20:38

Patrice TANCHAUD

Bonjour,récolte sur bord de chemin, dans une orni

24-07-2016 13:14

Salvador Tello

Hola a todos. Tengo estos apotecios creciendo sob

31-07-2016 23:27

Viktorie Halasu Viktorie Halasu

Hello, would anyone have this paper please? Beyer

27-07-2016 21:09

Enrique Rubio Enrique Rubio

Hi again These gregarious, small apothecia (150-

31-07-2016 21:08

Elisabeth Stöckli

Bonsoir,Sur bois mort de Calluna vulgaris (Lande s

31-07-2016 12:20

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que enco

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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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