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20-03-2026 12:53

Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

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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
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  • message #26275
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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