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Edvin Johannesen Edvin Johannesen

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Dear all I want to ask you if you have any recent

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Hi forum, On a herbaceous stem, possibly Aegopodi

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Matthew Rozanoff

Good morning,I was wondering if anyone recognizes

01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

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Bonjour, Sur branches mortes de Salix en place (m

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Francois Guay Francois Guay

I found this ascomycete at the base of a dead fern

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Hello, Last week in New York City this Orbilia wa

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Octospora
Salvador Tello, 24-11-2012 14:50
Mide unos 2mm y estaba en restos de una antigua hoguera. 
Ascas no amiloides y esporas con estas medidas.
21,7 [23,6 ; 24,7] 26,6 x 11,1 [11,6 ; 11,9] 12,4 µm
Q = 1,9 [2 ; 2,1] 2,2 ; N = 21 ; C = 95%
Me = 24,1 x 11,8 µm ; Qe = 2,1
Yo pienso que puede ser Octospora convexula, pero me quedan dudas, por que en alguna descripción que he leído dice que las paráfisis se colorean de verde con el iki y en otras no mencionan esto, la de mi recolecta no le veo que tome ese color, o por lo menos no es muy intenso.
¿Estoy en lo cierto con mi identificación? 
Gracias.

Saludos.
Salvador.
  • message #20518
  • message #20518
  • message #20518
  • message #20518
Uwe Lindemann, 24-11-2012 15:19
Uwe Lindemann
Re : Octospora
Hi Slavador,
in my opion your finding looks quite similar to the species of the Leucoscypha-semiimmersa-patavina-complex. Do you find some thickwalled hairs on the outside of the apothezium?
Best, Uwe
Björn Wergen, 24-11-2012 16:14
Björn Wergen
Re : Octospora
This should be Sepultariella semi-immersa.

regards, björn
Uwe Lindemann, 24-11-2012 18:11
Uwe Lindemann
Re : Octospora
Hi Björn,
Sepultariella semi-immersa is according to Index Fungorum an invalid name, although it is the current name of the taxon. Very strange. Maybe somebody can explain this strange case?
Best, Uwe
François Valade, 24-11-2012 18:14
François Valade
Re : Octospora
this combination has not been validly published http://www.indexfungorum.org/names/NamesRecord.asp?RecordID=466141?
so I call it Leucoscypha semi-immersa
Salvador Tello, 24-11-2012 21:01
Re : Octospora
No he visto pelos en el esterior del apotecio, (probaré otra vez).
Pero ¿no son demasiado grandes las esporas para ser  Leucoscypha semi-immersa?

Saludos.
Salvador.
DirkW, 25-11-2012 12:38
DirkW
Re : Octospora
hi together,

i agree with francois!
to me it seems completely absurd to split l. semi-immersa and l. patavina in differnet genera, because they are so close ...
so it stays a leucoscypha for me.

best

dirk
Uwe Lindemann, 25-11-2012 14:17
Uwe Lindemann
Re : Octospora
According to René Dougoud the sporesize of L. patavina is 20,6-25,6 x 10-11,5 µm and of semi-immersa (18,5-)20,5-22,5(-23,5) x (9,6-)10,5-11,2 µm. It overlaps such a lot that I can't see in sporesize the main feature to split the taxa. It may be two different taxa, but I find it hard to distinguish between them.
Best, Uwe
François Valade, 25-11-2012 16:07
François Valade
Re : Octospora
Uwe I disagree. I collected both and color of apothecia are really different: bright orange for patavina, yellow ochraceous for semiimmersa
Uwe Lindemann, 25-11-2012 16:39
Uwe Lindemann
Re : Octospora
Hi François,
thank you very much for your comment!
Here I have a Leucoscypha-"patavina"-Collection which is (in my opion) not bright orange.
Sporesize: 25-26,5 x 11-12 µm.
And here is another collection, one of Leucoscypha-"semi-immersa", with orange colors.
Sporesize: 21-22 x 9-11 µm.
What do you think about it?
Best, Uwe



  • message #20535
  • message #20535
Salvador Tello, 25-11-2012 22:25
Re : Octospora
La he estado mirando otra vez y parece que si va a ser L. patavina.
Gracias.

Saludos.
Salvador.