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18-06-2025 19:24

Bernard Declercq Bernard Declercq

Good evening,On Oenanthe aquatica we collected  a

18-06-2025 16:24

Andgelo Mombert Andgelo Mombert

Bonjour,Un minuscule stade imparfait, qui pousse s

13-06-2025 16:34

Andgelo Mombert Andgelo Mombert

Bonjour,Un petit discomycète qui me résiste. Il

11-06-2025 16:26

Jason Karakehian Jason Karakehian

Hi everyone, I am looking for the following protol

17-06-2025 14:23

Josep Torres Josep Torres

Hello.A probable Hyaloscypha from last June 1st, s

17-06-2025 12:10

Castillo Joseba Castillo Joseba

Del pasado dia 4  en bosque de hayas, en tierraA

12-03-2025 17:54

Karl Soler Kinnerbäck

Hi all!Do you agree with Scutellinia hyperborea? P

17-06-2025 12:02

Castillo Joseba Castillo Joseba

Del pasado sabado, en bosque de hayas y avellanos,

13-06-2025 09:41

Josep Torres Josep Torres

Hello.A cerebriform ascomycete sprouting scattered

13-06-2025 19:57

Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y avellanosEjemplar uni

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Stictis
Bometon Javier, 16-12-2013 21:16
Bometon JavierEn madera de Quercus.

Tamaño 0,5 mm

Ascas 50-60 um IKI-

Esporas de 35-48 X 4-5um, con 7- 9 septos

Parafisis filiformes y ramificadas, no azulean con IKi

Alguna idea?

Gracias y saludos
Javier
  • message #26275
  • message #26275
  • message #26275
  • message #26275
Daniel Ghyselinck, 16-12-2013 21:32
Re : Stictis
Bonjour Javier,

Regarde du côté de Cryptodiscus rhopaloides, il me semble que la microscopie correspond assez bien. C'est une espèce assez commune sur écorce de feuillus. Les spores sont un peu grandes, mais j'ai aussi des récoltes avec des spores jusque 47 µm.

Amitiés,
Daniel
Martin Bemmann, 16-12-2013 21:35
Martin Bemmann
Re : Stictis
Hi Javier,

with these clavate spores (fig. 3) consider Cryptodiscus.

Regards
Martin

Update: Daniel seems to have the same thoughts. But I must admit that Zotto (in a circulating paper) excluded Cryptodiscus rhopaloides from this genus in his comments on Breitenbach&Kränzlin 1984, as well Baloch et al 2009 did.
Bometon Javier, 16-12-2013 22:41
Bometon Javier
Re : Stictis
Muchsas gracias, Daniel y Martin


Saludos
Javier
Hans-Otto Baral, 16-12-2013 23:04
Hans-Otto Baral
Re : Stictis
Yes, there are two species rather common, rhopaloides and the less common idaei which has narrower spores than rhopaloides. Both are very closely related, and belong in Karstenia. By the way, Lugol provokes a red reaction to the entire hymenium, with a faint blue running ahead. After KOH treatment the hymenium stains deep blue in iodine.

My maximum was actually 50 µm, but with spores strongly clavate and hardly constricted at septa.

C. rhopaloides is also known as Ramonia interjecta, being probably erroneously thought to be a lichen.

Zotto
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Daniel Ghyselinck, 17-12-2013 18:23
Re : Stictis
Thanks for these very precise information (as usual), Zotto.

Daniel
Bometon Javier, 17-12-2013 21:54
Bometon Javier
Re : Stictis
Muchas Gracias Zotto, por tus excelentes explicaciones.

Saludos
Javier