Accès membres

Mot de passe perdu? S'inscrire

14-04-2025 15:11

Lennert Gees

Greetings!For my master's dissertation I work on c

27-04-2025 15:54

Martin Bemmann Martin Bemmann

Can somebody provide this article from a Leningrad

26-04-2025 16:01

Jacques Fournier Jacques Fournier

J'ai le regret d'informer les membres du forum qui

26-04-2025 07:15

Dragiša Savic

Hello everyone,the lichen is Candelariella aurella

26-04-2025 19:32

Francois Guay Francois Guay

I found these small Arachnopeziza sp. growing on d

25-04-2025 22:48

Gustaf Fredell Gustaf Fredell

Hello,I hope everything is going well. I couple mo

18-04-2025 23:16

Robin Pétermann Robin Pétermann

Bonjour, Voici une probable Mollisia, genre que j

24-04-2025 21:35

Thorben Hülsewig

Hi there,last week i could found this asco on an S

25-04-2025 17:24

Stefan Blaser

Hi everybody, This collection was collected by J

25-04-2025 09:33

Josep Torres Josep Torres

Ascomata shaped like deformed black grains, measur

« < 1 2 3 4 5 > »
Rutstroemia maritima
Miguel Ángel Ribes, 27-02-2013 20:55
Miguel Ãngel RibesGood evening

I have this species from Parador de Mazagon, 15.01.2012 and 12.01.2013, on a small stem, perhaps Ammophila arenaria, 4-6 mm.

Spores (1000x, H2O, live)
(12.8) 14.0 - 16.8 (17.6) x (5.6) 6.0 - 6.8 (7.1) µm
Q = (1.9) 2.1 - 2.7 (2.8) ; N = 82
Me = 15.3 x 6.4 µm ; Qe = 2.4

I would like to confirm it is Rutstroemia maritima and to know nearest species.

Thank you.
  • message #22183
  • message #22183
  • message #22183
  • message #22183
  • message #22183
  • message #22183
  • message #22183
Miguel Ángel Ribes, 27-02-2013 21:01
Miguel Ãngel Ribes
Re : Rutstroemia maritima
Asci with croziers, euamyloid. Paraphysis septated.
  • message #22184
  • message #22184
  • message #22184
  • message #22184
  • message #22184
  • message #22184
Hans-Otto Baral, 27-02-2013 21:04
Hans-Otto Baral
Re : Rutstroemia maritima
Hi Miguel

to clarify this requires two details:

1. croziers

2. iodine reaction

I suspect Rutstroemia calopus, typical of Poaceae. 

Zotto
Miguel Ángel Ribes, 27-02-2013 21:08
Miguel Ãngel Ribes
Re : Rutstroemia maritima
Subhymenium, excipulum and margen.

Best wishes.
  • message #22186
  • message #22186
  • message #22186
  • message #22186
  • message #22186
  • message #22186
  • message #22186
  • message #22186
Miguel Ángel Ribes, 27-02-2013 21:10
Miguel Ãngel Ribes
Re : Rutstroemia maritima
Hi Zotto

You are very, very fast. Your answer arrived before my last pictures, jejeje.

Croziers +
Euamyloid asci

Thanks
Hans-Otto Baral, 27-02-2013 21:15
Hans-Otto Baral
Re : Rutstroemia maritima
Nice photos! The croziers are clearly seen on the 2nd and 3rd of your pics, but not the striking protuberance at the separated asci (which is also present in paludosa) but with less contrast and when still attached. What I miss are crystals in the texture or on the surface. Maybe there are but rather small?

So it is calopus in my opinion. R. paludosa is on Cyperaceae and Juncaceae and has no croziers. R. maritima I do not understand. One collection which I studied named ?maritima  had inamyloid asci, croziers, and grew on Ammophila. Maybe this was only an aberrant from of calopus. Dennis reports amyloid asci for maritima.

Zotto
Miguel Ángel Ribes, 27-02-2013 21:45
Miguel Ãngel Ribes
Re : Rutstroemia maritima
Are this the crystals? Very, very few.

Sorry, I don't understand "striking protuberance at the separated asci", I have more croziers pictures.

Yes, I saw your collection "R ? maritima HB6860 E, 10.II.01 from Spain", but I did not notice it is IKI - 

So, don't exists R. maritima?

I forgot to said it was on dunes.

Best wishes.
  • message #22189
  • message #22189
  • message #22189
  • message #22189
Hans-Otto Baral, 27-02-2013 21:52
Hans-Otto Baral
Re : Rutstroemia maritima
Yes, now I see some crystals. And nice croziers. What I meant: The two ascus pics before the amyloid ascus apices show two +/- isolated asci with a prominent basal protuberance. This is not a proof for croziers, because it also occurs in paludosa.
Miguel Ángel Ribes, 27-02-2013 23:16
Miguel Ãngel Ribes
Re : Rutstroemia maritima
Ok, now I understand it, I thought that big protuberance was a "extreme" crozier.

Any paper about R. calopus, R. paludosa, please? The only one I have "Le champignon du mois (12). Urs Roffler, 2002 SZP/BSM: 235-238" write Rutstroemia calopus (Fr.) Rehm = Rutstroemia paludosa (Cash & Davidson) Groves & Elliott.

Thanks.
Hans-Otto Baral, 28-02-2013 18:28
Hans-Otto Baral
Re : Rutstroemia maritima
Hi Miguel

The character of croziers is unreported in the literature as far as I know, it was a discovery of my own and was confirmed be rather many records from various people. From the substrate of the type collections I concluded for the two names: Groves & Elliott 1961 say Carex for paludosa, For calopus I do not remember, but someone should have treated it originally on Poaceae.

Zotto
Miguel Ángel Ribes, 28-02-2013 21:31
Miguel Ãngel Ribes
Re : Rutstroemia maritima
Hi Zotto

Thnak you again.

Somebody has the original description of R. calopus and R. paludosa?

See you.
Martin Bemmann, 28-02-2013 22:02
Martin Bemmann
Re : Rutstroemia maritima
Hi Miguel,

easy for paludosa: http://www.cybertruffle.org.uk/cyberliber/59350/0025/004/0271b.jpg?

calopus you will find here on P. 307: http://tiny.cc/d0h8sw?

Best regards

Martin
Hans-Otto Baral, 28-02-2013 23:46
Hans-Otto Baral
Re : Rutstroemia maritima
Yes, thanks Martin. The substrate given by Fries is quite dubious :-(

In my database I have some further possible names for this complex:
Helotium rubescens Crouan   1867
Rutstroemia henningsiana Ploettn. 1899
Ciboria blanda Svrcek 1958
Rutstroemia plana DM Hend. 1970

so anybody willing to check all these from type material? :-) 

Zotto
Miguel Ángel Ribes, 28-02-2013 23:53
Miguel Ãngel Ribes
Re : Rutstroemia maritima
Thank you Martin

I am not good finding papers.

Best regards.
Miguel Ángel Ribes, 01-03-2013 00:29
Miguel Ãngel Ribes
Re : Rutstroemia maritima
That is a job for expert mycologist, Zotto.
Guy Garcia, 01-03-2013 12:27
Re : Rutstroemia maritima
Hi Zotto,

If you possess the short publication of Henderson where Rutstroemia plana is described, you could send it to me! Thank you in advance.
The reference is
HENDERSON D.M. 1970 Notes on three British ascomycetes. Notes Roy. Bot. Gard. Edinb. 30 (1) : 203-205.
This collection seems accessible to this address
http://www.europeana.eu/portal/record/08705/F8062EF02E59F19B0218323BAD9F890C8EE0702A.html?query=%22notes+from+the+royal+botanic+garden+edinburgh%22+1970
but I am not authorized in the download
Best, Guy
Hans-Otto Baral, 01-03-2013 12:37
Hans-Otto Baral
Re : Rutstroemia maritima
I regret I do not have. I see I was referring to the docu in Ellis & Ellis p. 542, on Eleocharis, which looked to me quite as R. calopus.

Zotto
Guy Garcia, 01-03-2013 13:01
Re : Rutstroemia maritima
Maybe a colleague of the forum can send it to us?