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04-11-2013 19:56

Enrique Rubio Enrique Rubio

Hi to allThis nice Otidea makes auricularioid apot

04-11-2013 22:33

Gilbert MOYNE

Bonsoir,Voici un petit ascomycète qui me laisse b

02-11-2013 17:17

Beñat Jeannerot Beñat Jeannerot

Adio à tous,Il me faudrait les articles suivants

02-11-2013 16:25

Peter Thompson

Hello Everyone,I have received the data and images

03-11-2013 05:35

Beñat Jeannerot Beñat Jeannerot

Adio à tous,Désolé d'encombrer le forum avec ç

01-11-2013 22:38

Javier Ormad Javier Ormad

Hola a todos!Os presento un especimen en hojas de

01-11-2013 13:28

Chris Yeates Chris Yeates

Bonjour tousI am interested in speciation in Ampel

01-11-2013 19:39

Salvador Tello

Hola.Hace unos días encontré estos hogos. Apote

31-10-2013 21:58

Salvador Tello

Hola a todos.Tengo este ascomiceto que crecía en

31-10-2013 22:39

Ralph Vandiest Ralph Vandiest

Hello,I found the following species on pine needle

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Rutstroemia
Joaquin Martin, 30-08-2025 18:29
Hi,


I found this undetermined ascomycete on broadleaf wood in a botanical garden with many exotic trees.
The spores measure 19-22 x 4.7-5.4 µm.
I am thinking of Rutstroemia, but either the habitat or the spores do not match.
Any ideas?
Thank you.
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  • message #83391
  • message #83391
  • message #83391
Hans-Otto Baral, 30-08-2025 20:20
Hans-Otto Baral
Re : Rutstroemia
Why do you think R. firma does not fit? Spore size, shape and content  is o.k. for it. E.g. Huhtinen 1984 measured 19-23 x 4-5 for a sample on Alnus.

There is a R. alnobetulae which could alternatively fit. I remember the contents of the paraphyses stained blue in IKI, and the ectal excipulum is more gelatinous.
Joaquin Martin, 31-08-2025 08:43
Re : Rutstroemia
Hi,

I have never seen it so funnel-shaped and always with minor spores.
Thank you.
Hans-Otto Baral, 31-08-2025 09:40
Hans-Otto Baral
Re : Rutstroemia
R. firma is variable and occurs in a shorter- and straight-spored form. Probably there is a heterogeneity, becasue of a distinct genetical difference among collections which needs more study.

I think the apo shape is not important.
Joaquin Martin, 31-08-2025 13:12
Re : Rutstroemia
Hi,

Thank you for the explanation.
Good day.