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07-05-2024 00:04

tiny black gelatinous ascos
Ethan Crenson

A friend found these black gelatnous cups on a twi

06-05-2024 08:27

Tympanis pini
Blasco Rafael Blasco Rafael

Hola Buenos días.Alguno de ustedes tiene disponib

06-05-2024 10:02

Unknown perithecia on Osmunda!
François Bartholomeeusen

Good morning,At the end of an excursion in De Zegg

05-05-2024 12:55

Olla sp
Sylvie Le Goff

Bonjour Peut on dire que les poils soient vitreux?

05-05-2024 09:59

Anamorph on Carpinus bark
Gernot Friebes

Hello,I failed to identify this anamorph, which gr

19-04-2015 20:20

Literature aide on Pirottaea
Enrique Rubio Enrique Rubio

Hi again Could you help me with this paper? NANN

30-04-2024 16:22

Could this be Ciborinia pseudobifrons?
François Bartholomeeusen

Dear forum members,On April 25 2024, I found one f

03-05-2024 18:04

Rutstroemia fruticeti?
Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Rubus fr

02-05-2024 20:04

Hypoxylon fuscum
éric ROMERO éric ROMERO

Bonjour, Une question à propos de la réaction a

01-05-2024 23:22

long-necked anamorph embedded in wood
Ethan Crenson

Hi all, Found late last week in a New York City p

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Octospora species
Ralph Vandiest, 04-01-2014 22:22
Ralph VandiestHello,

I found this species between mosses that where growing on concrete. Size 2mm.  I first thought of  Octospora musci-muralis but I only found spores with 1 large drop and several smaller ones. Spores measure 21/23x9/10µm. Q>2. Paraphyses with swollen apex up to 8µm. J-


Can anybody tell me which species this is...


PS I don't know much about mosses so I don't know the name of the host  


Thx


Ralph

  • message #26578
  • message #26578
  • message #26578
Marcel Vega, 04-01-2014 23:17
Re : Octospora species
Hi Ralph,
O. leucoloma would be my guess.  
See red arrows pointing on Bryum argenteum (apart from this O. leucoloma fools around with other Bryums too).
Cheers,
Marcel
  • message #26579
Ralph Vandiest, 04-01-2014 23:27
Ralph Vandiest
Re : Octospora species
Hello MArcel,


Problem is that  my Q>2 (21/23x9/10µm) and for O Leucoloma Q<2 ...

regards
Marcel Vega, 04-01-2014 23:32
Re : Octospora species
Who told you this, Ralph?
Best,
Marcel
Jan Eckstein, 05-01-2014 08:56
Re : Octospora species
hello Ralph,

it looks like O. gemmicola. This species has somewhat narrower spores than O. leucoloma (19-23 x 8.5-10.5  vs. 20-24 x 10-12 µm. Host probably is Bryum dichotomum (rhizoid gemmae should be absent).

with best wishes

Jan
Marcel Vega, 05-01-2014 19:40
Re : Octospora species
This is an even better guess, my young friend!
Cheers,
Marcel
Ralph Vandiest, 05-01-2014 20:29
Ralph Vandiest
Re : Octospora species
Hello Marcel & Jan,


Thanks for your reactions. i think indeed it is it must be O. gemmicola

Regards,

Ralph