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19-09-2025 23:55

Jorge Hernanz

Estoy buscando y no encuentro el siguiente artícu

18-09-2025 08:35

Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

19-09-2025 18:29

Castillo Joseba Castillo Joseba

De ayer  recolectadas en Kk de vacunoHabia ejempl

17-09-2025 19:43

Philippe PELLICIER

Sur branche morte de Mélèze. Les ascospores sphÃ

18-09-2025 19:40

Sylvie Le Goff

BonjourPensez vous que le genre Pulvinula puisse c

18-09-2025 16:14

Bernard Declercq Bernard Declercq

Hello,I am looking for a copy of following paper:H

17-09-2025 16:14

Philippe PELLICIER

Apothécies enterrées, fermées au début puis s'

17-09-2025 10:50

Heather Merrylees

Hi there!I am hoping for any advice on the identif

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

16-09-2025 12:53

Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

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Pyreno on Aesculus hippocastaneus.
Per Marstad, 23-12-2017 21:00
Per MarstadVery small, ca. 1 mm in diam.
Spores 18-22 x 7.
Looks like Hysterium pulicare, which is very common on oak here.
Norway, Tønsberg.
Per.
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Peter Püwert, 23-12-2017 23:10
Peter Püwert
Re : Pyreno on Aesculus hippocastaneus.
Hi, probably Hysterium angustatum.
Peter.
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Björn Wergen, 23-12-2017 23:40
Björn Wergen
Re : Pyreno on Aesculus hippocastaneus.
Hi Per,

for determination of these "Hysterothecia", spores are the most important feature. There are two common species which mostly grow on bark of various trees: Hysterium angustatum and Hysterium pulicare. The latter one has beautiful bicolorous spores.

Regards,
Björn
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Per Marstad, 27-12-2017 16:53
Per Marstad
Re : Pyreno on Aesculus hippocastaneus.
Is Hysterium angustatum and H. acuminatum syn.?
Per
Stoykov Dimitar, 30-12-2017 12:01
Stoykov Dimitar
Re : Pyreno on Aesculus hippocastaneus.
Hi Per,

I don't know this taxon, Index Fungorum gave the name as legitimate name suggested in Fries as H. acuminatum. You have to check the descriptions provided in the literature.

Dimitar
Alain GARDIENNET, 30-12-2017 14:39
Alain GARDIENNET
Re : Pyreno on Aesculus hippocastaneus.

Hi,


Yes, obviously H. angustatum ; of course ascospores are a good feature but we must be careful because other genus not so far away provide  fungi with such ascospores. For example : Hysteropatella prostii or Mytilinidion tortile.


Synonymies,  by E. Boehm :


Hysterium angustatum Alb. et Schw.
Alb. et Schw. 1805. Consp. Fung. Lusat.: 55.


Syn. :


Hysterium acuminatum Fries, 1823
Hysterium acuminatum var. alpinum Rehm (after Saccardo, 1883, & Rehm, 1896)
Gloniella ambigua Karst., 1891
Hysterium angustatum var. cerotoniae Toll, 1905
Hysterium eucalypti Phill. et Hark., 1884b
Hysterium karstenii Lohman, 1939
Hysterium lentisci Rolland, 1901
Hysterium pulicare var. angustatum Kunze (after Fries, 1823)
Hysterium pulicare var. totarae Sacc., 1908


Best wishes for 2018,


Alain


 

Per Marstad, 30-12-2017 18:06
Per Marstad
Re : Pyreno on Aesculus hippocastaneus.
Thank you to you all.
Per