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09-10-2024 05:05

Hymenoscyphus sp. on twigs, leaves and petioles
Ethan Crenson

Hello all, I found this tiny pale yellow Hymenosc

09-10-2024 05:41

Brunnipila fuscescens and long spore Brunnipila?
YI-SIOU CHEN YI-SIOU CHEN

Hello, I found two species of Brunnipila in Taiwa

08-10-2024 13:44

Hymenocyphus or Rutstroemia
Pavel Jiracek

I think this is R.bolaris. How can I verify that a

07-10-2024 05:02

512 (or more) -spored "Podospora"
Francisco Calaça Francisco Calaça

Hi there! A long time I dont figure here! How are

08-10-2024 19:45

Cheilymenia vitellina?
Margot en Geert Vullings

These bright yellow small discs found on 29 Sep 20

08-10-2024 13:20

Orbilia cotoneastri?
Harald Homa Harald Homa

Hello everyone! Once again I came across an Orbil

03-10-2024 20:56

Orange disc, Melastiza flavorubens
Margot en Geert Vullings

These orange discs were found in September on mois

05-10-2024 15:55

Humaria hemisphaerica
B Shelbourne B Shelbourne

• Macro and habitat suggest Humaria hemisphaeric

04-10-2024 17:08

Orange disc, Melastiza flavorubens?
Birgit Lüthje

I just found a very similar ascomycet on a heap of

01-10-2024 17:02

Chlorociboria aeruginascens
B Shelbourne B Shelbourne

• Habitat and macro suggest Chlorociboria.• P

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Crocicreas dolosellum ?
Gilles Corriol, 28-04-2013 17:04
Gilles CorriolBonjour,

Voici une récolte de l'an dernier (GC12112210), étudiée avec réactifs non orthodoxes ...
Sur tige herbacée.

Spores étroitement fusiformes 13,1-18,2 x 2,2-2,8 µm, 0-1 septées, faiblement guttulées.
Asques environ 70x7 µm, 8 sp., bisériés, bouclés, I+ (au fait, un asque ou une asque en français ?)
Paraphyses cylindriques, x 2-2,5 µm, non ramifiées, non septées.
Trame à hyphes allongées, gélifiées.
Poils externes cylindriques, à contenu granuleux, jaune d'or.

Merci pour vos critiques et avis !
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Hans-Otto Baral, 28-04-2013 18:13
Hans-Otto Baral
Re : Crocicreas dolosellum ?
Can you exclude Fraxinus petioles? Because the features remind me of Cyathicula fraxinophila.

C. dolosella has 1-septate spores already inside the living asci, C. fraxinophila only outside or in dead asci.

C. fraxinophila has croziers, my C. dolosella (5188) not.
Gilles Corriol, 29-04-2013 09:19
Gilles Corriol
Re : Crocicreas dolosellum ?
Substrate is likely to be Fraxinus excelsior petiole. Only very few mature spores were septed. C. fraxinophilus seems a very good candidate.
It seems that spores also were too long for C. dolosellum.

Thank you Zotto.
Hans-Otto Baral, 29-04-2013 09:22
Hans-Otto Baral
Re : Crocicreas dolosellum ?
Frax petioles you can easily recognize by their scars (two at each internodium) where the leaftes emerged.

Gilles Corriol, 29-04-2013 15:58
Gilles Corriol
Re : Crocicreas dolosellum ?
I confirm there are such scars.