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01-02-2023 09:35

Lothar Krieglsteiner Lothar Krieglsteiner

... 29.3.23 near Carrapateira (W-Algarve, Portugal

02-02-2023 12:44

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (Españla),

24-01-2023 23:30

Josep Torres Josep Torres

Hola.Una Botryosphaeriaceae sobre la corteza de un

03-02-2023 18:05

Malcolm  Greaves Malcolm Greaves

Looking at a dried Glutinoglossum which has a mixt

29-01-2023 00:14

Norbert Heine Norbert Heine

Hallo, can someone help me with this article: Aa

01-02-2023 16:57

Ethan Crenson

Hi all,On a recent visit to the Bahamas, I had a l

31-01-2023 13:50

Savic Dragisa

Regards to allAn unusual finding, especially for m

02-02-2023 13:06

ruiz Jose antonio

Hola, una Anthracobia en restos de quemados compar

01-02-2023 10:30

Lothar Krieglsteiner Lothar Krieglsteiner

... on old herbaceous stem (likely Tropaeolum maju

01-02-2023 09:30

Lothar Krieglsteiner Lothar Krieglsteiner

.. 29.1.23 near Carrapateira (W-Coast of Algarve),

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Echinosphaeria canescens/strigosa
Chris Yeates, 11-03-2012 12:48
Chris YeatesI have collected good material of an Echinosphaeria and would like to place images on the database. I am aware that there is no clear line between the two species - indeed some authorities suspect they are one and the same. What are the chief 'differences' please? I suspect this is a question for Alain and his special knowledge!

J'ai rassemblé bon matériel et que vous souhaitez placer des images sur la base de données. Je suis conscient qu'il n'ya pas de ligne claire entre les deux espèces. Quelles sont les 'différences' s'il vous plaît? Je soupçonne que c'est une question pour Alain et sa connaissance particulière!

merci et amitiés

Andrew N. Miller, 11-03-2012 15:37
Andrew N. Miller
Re : Echinosphaeria canescens/strigosa
E. canescens is believed to have smaller ascospores (17–24 x 3–4 µm) than E. strigosa (34–40 x 6–7 µm), but I have not seen good material of E. strigosa.  If anyone has good material of E. strigosa, I would love to sequence it and let DNA solve this mystery once and for all...;o)  I believe E. strigosa was described from England.

Chris Yeates, 11-03-2012 15:56
Chris Yeates
Re : Echinosphaeria canescens/strigosa
thanks for that Andy - of course the ascospores from my collection measure 24.2-28.6 x 4.8-6µm . . . . . typical! These spores are still hyaline and mostly non-septate, but were ejected in a water mount so presumably they're 'natural' size - I'll post some images later today.

there are few mycologists collecting these kind of fungi in the UK, but those who do and  are using Ellis & Ellis I as their source are going to be producing a confusing situation - that work does not include Lasiosphaeria strigosa, but does have L. canescens with spore measurements of 30-40 x 4-5µm.

Chris Yeates, 11-03-2012 16:04
Chris Yeates
Re : Echinosphaeria canescens/strigosa
  • message #17750
Alain GARDIENNET, 11-03-2012 17:14
Re : Echinosphaeria canescens/strigosa

Hi Andy,
I have strigosa dated the 23rd december 2011. Is it too old ?
Chris, I've already got Echinosphaeria like yours...disturbing.

Andrew N. Miller, 11-03-2012 19:05
Andrew N. Miller
Re : Echinosphaeria canescens/strigosa
Dear Alain,

  That would be perfect if the collection contains 20-30 ascomata.  I can try sequencing it and see where it comes in relation to E. canescens.  I already have several sequences of E. canescens from Europe and North America.

Hans-Otto Baral, 11-03-2012 21:50
Hans-Otto Baral
Re : Echinosphaeria canescens/strigosa
Hi all

I suppose the spores get distinctly narrower when placed in lethal media. Chris's spores are alive, according to the regular multiguttulate interior.

Chris Yeates, 11-03-2012 22:40
Chris Yeates
Re : Echinosphaeria canescens/strigosa
yes they were alive; I shall dry the material and revive and look at it later in various reagents, to see if there are any significant differences

Bernard Declercq, 12-03-2012 13:23
Bernard Declercq
Re : Echinosphaeria canescens/strigosa
Hi all,

E. canescens and E. strigosa not only have spores with different dimensions, but they have a different shape too. See paper in annex.

Best regards,
Andrew N. Miller, 13-03-2012 15:58
Andrew N. Miller
Re : Echinosphaeria canescens/strigosa
Bernard's beautiful photos just reminded me that what I have in my collections are lots of specimens of E. strigosa (the longer-spored species).  What I really need are collections of E. canescens (the shorter-spored species; 17–24 x 3–4 µm) for molecular study.  My apologies for my confusion...

Chris Yeates, 13-03-2012 21:09
Chris Yeates
Re : Echinosphaeria canescens/strigosa
So in view of that - and looking at Bernard's illustrations - should I label my collection "E. cf. strigosa" then?

Andrew N. Miller, 13-03-2012 21:50
Andrew N. Miller
Re : Echinosphaeria canescens/strigosa
Yes, if being nomenclaturally correct is important to you...;o)