Accès membres

Mot de passe perdu? S'inscrire

30-05-2026 21:12

Lachnellula sur mélèze
Philippe PELLICIER

Sur branche de mélèze (Larix) près de la neige,

31-05-2026 10:35

Pseudoplectania on birch wood
Hulda Caroline Holte

Hello,I collected this species growing on a rather

25-05-2026 16:35

Anamorphe d'Hypomyces aurantius ? sous saule cendré (Salix cinerea)
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,J'ai trouvé récemment,

29-05-2026 15:35

Fusarium sur Robinier
daniel FERRE

Bonjour à tous,Je voudrais votre aide pour cette

28-05-2026 16:15

Literature request: Caloscypha fulgens f. caesioalba
James Mitchell

Hello,Does anyone have the original publication of

28-05-2026 11:06

Stictidaceae (?) on Typha latifolia - short-spored, I+ - Denmark
Thomas Læssøe

https://svampe.databasen.org/observations/10596750

23-05-2026 11:44

Coprophilous pyrenomycete wild boar dung
Charles Grapinet Charles Grapinet

Hello, I am having trouble identifying this copro

25-05-2026 16:44

Ascomata under epidermis Carex
François Bartholomeeusen

Hi forum members,During an excursion organised by

26-05-2026 21:25

small ascomycetes on Quercus sp.
Dirk Gerstner

Hello everyone, I'm completely stumped by this li

26-05-2026 22:44

Incrucipulum capitatum ?
Ethan Crenson

Hi all, I think I have Incrucipulum capitatum her

« < 1 2 3 4 5 > »
White discomycete on Alnus cones
Khomenko Igor, 21-01-2021 03:47
Khomenko IgorHi,

I found this small white discomycete on Alnus incana cones on the ground.

Pictures are here: https://www.inaturalist.org/observations/59289600

Apothecia 0.5-0.6mm, some with a long stipe.
Asci 8-spored, IKI+r or IKI+b after KOH, croziers(+), 90-118x9-11um.
Ascospores biguttulate, measure
(15) 15.5 - 18 (18.9) × (4) 4.2 - 4.7 (5.1) µm
Q = (3.3) 3.4 - 4.2 (4.4) ; N = 31
Me = 16.7 × 4.4 µm ; Qe = 3.8
Paraphyses with long, cylindrical VBs.


I presumed it could be Pezizella/Calycellina alniella, but the spores size and shape, IKI reaction and some other thing do not look right and I run out of ideas.


Any help would be greatly appreciated.


Regards,
Igor

Hans-Otto Baral, 22-01-2021 11:22
Hans-Otto Baral
Re : White discomycete on Alnus cones
Hi Igor

it took a while until I realized the apical ring of Pezicula-type. This is an Allophylaria (close to Calycina), and it comes close to a sample on twig of ?Pistacia lentiscus by Ruben Martinez-Gil posted in 2017.


But i think the spore ends are too acute in your sample.

In my Allophylaria folder it is called "woody"

Zotto
Khomenko Igor, 23-01-2021 04:21
Khomenko Igor
Re : White discomycete on Alnus cones
Thank you Zotto for all your help. Indeed, it looks very similar to the other members of this genus.