Accès membres

Mot de passe perdu? S'inscrire

02-07-2025 09:32

Searching of a paper from The Mycologist
Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello, bonjour.Here is the paper I'm searching for

30-06-2025 16:56

Septoria on Impatiens glandulifera
Lydia Koelmans

Please can anyone tell me the species name of the

01-07-2025 23:37

Help with a Pleosporal.
Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

30-06-2025 12:09

Black erumpent on Populus (Ascodichaenaceae?)
Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 06:57

Pezizales --Pyronema?
Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

30-06-2025 19:05

RECHERCHE ARTICLE
ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

30-06-2025 14:45

is this a Hymenoscyphus on Nothofagus?
Götz Palfner Götz Palfner

This is a quite common species on Nothofagus wood

25-06-2025 16:56

Scutellinia cejpii ?
Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

29-06-2025 18:11

unknown discomycete from Brooklyn
Ethan Crenson

Hello all, A friend found this disco yesterday in

28-06-2025 17:10

Literature Request
Peter Welt Peter Welt

I'm looking for: RANALLI, M.E., GAMUNDÍ, I.J. 19

« < 1 2 3 4 5 > »
Hilberina sp.
Gernot Friebes, 05-11-2015 17:47
Hi,

on my last field trip I found a few ascos which I cannot determine without your help. The first one is a Hilberina with brown ascospores (already inside the ascus) which measure about 35-42 x 3,5-4,5(5,5) µm and have mostly one septum, rarely two (three could be possible given the pattern of septation but I never observed more than two septa). Ascospore morphology seems to deviate from most of the known species in this genus...

It grows on the bast of a Fagus branch that was collected from the ground.

Help is very much appreciated!

Best wishes,
Gernot
  • message #38702
  • message #38702
  • message #38702
  • message #38702
  • message #38702
  • message #38702
  • message #38702
  • message #38702
  • message #38702
  • message #38702
  • message #38702
  • message #38702
Andrew N. Miller, 05-11-2015 18:17
Andrew N. Miller
Re : Hilberina sp.
Hilberina breviseta or Hilberina caudata

Andy
Gernot Friebes, 06-11-2015 14:22
Re : Hilberina sp.
Hi Andy,

I had initially excluded H. breviseta because Hilber & Hilber (http://www.landesmuseum.at/pdf_frei_remote/Sydowia_36_0105-0117.pdf) describe and illustrate the ascospores with more attenuate basal parts (also overall a bit longer). Maybe this is not always the case? Other than that it seems to fit decently well.

Hilberina caudata I thought should have more sharply curved basal ends so I had excluded that one as well. Really not an easy group this...

Best wishes,
Gernot
Andrew N. Miller, 06-11-2015 14:28
Andrew N. Miller
Re : Hilberina sp.
I agree, not an easy group, but it would not be fun if it was easy... ;o)

I am a lumper, not a spliter - what can I say?

Andy
Bernard Declercq, 07-11-2015 13:36
Bernard Declercq
Re : Hilberina sp.
Hi Gernot,

H. breviseta has spores with an acerose basal end, so it should be exluded here. Otherwise H. caudata has much longer and wider spores compared to your collection and should excluded too.
Into my opinion your collection should be situated close to H. moseri, a species I never collected however and is said ot have slightly longer spores. Sequencing would be helpful here.

Best regards,
Bernard

Alain GARDIENNET, 08-11-2015 01:32
Alain GARDIENNET
Re : Hilberina sp.

Hi friends,


Good guess from Bernard ! I know a little this species for having collected more than 6 times  I'm at present time working on Lasiosphaeria moseri, by a strange and incredible coincidence. The mine on Buxus, as usual.


See photos of ascospores, one can observe an intraspecifical variability in shape and size of ascospores.


Alain


 

  • message #38748
  • message #38748
  • message #38748
  • message #38748
Andrew N. Miller, 08-11-2015 01:50
Andrew N. Miller
Re : Hilberina sp.
It would be good to sequence several collections of putative Hilberina moseri.

Andy
Alain GARDIENNET, 08-11-2015 08:28
Alain GARDIENNET
Re : Hilberina sp.

Hi Andy,


I look at material. If it's good, mature and sufficient, I send it to you. If not, I think I can to find more next week.


Alain

Jacques Fournier, 08-11-2015 14:49
Jacques Fournier
Re : Hilberina sp.
I also sometimes find a Hilberina on Coriaria myrtifolia that I refer to H. moseri. Its consistently 3-septate ascospores 45-52 x 4,2-5 fit well Hilber's description of the type. They are in average relatively more slender than those reported by Gernot and Alain but variations occur inevitably.
Only Andy can solve this mess!
Jacques
  • message #38757
  • message #38757
Andrew N. Miller, 09-11-2015 00:02
Andrew N. Miller
Re : Hilberina sp.
Thank you Alain and Jacques for the material and confidence.  I will try to resolve this species complex (and many others) before I leave this world.

Andy
Gernot Friebes, 09-11-2015 11:16
Re : Hilberina sp.
Thanks, everyone, for sharing your valuable observations! After seeing your photos I think my collection is indeed closest to H. moseri (or "H. moseri complex"). Unfortunately my material consists of only a few ascomata so I fear that won't be enough for sequencing...

Best wishes,
Gernot
Alain GARDIENNET, 09-11-2015 11:29
Alain GARDIENNET
Re : Hilberina sp.

Me too, not enough material, as it's often with such species, but I've a good hope to find it again.


Alain