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Nicolas VAN VOOREN
Hello, bonjour.Here is the paper I'm searching for
Found on the dead flower stems of Ammophila arenaria.
Not immersed but on a hyphal mat. Size: 135µm tall x 90µm wide (average).
Asci 8-spored, biseriate, 41-48 x 8-10µm, non-amyloid.
Spores 3-septate, slightly pinched at the median septum, guttulate, gelatinous appendages at each end. Size: 14.9-18.6 x 4.0-4.9µm
Paraphyses filiform and longer than the asci.
Last two images in Lugol's.
Grateful for any directional help again.
Cordialement. Chris
I don't know your fungus but I found a good match in Dennis' Fungi of Ammophila (Revista de Biologia 12: 15-48, 1983). It is Tubeufia parvula Dennis (Kew Bulletin 30: 362, 1975), unlikely a Tubeufia but it has not been revised by Rossman (1987) and it is still accepted under this name in IF and MB. Perhaps someone on the forum will be interested in revising the status of this fungus on molecular grounds.
I am sorry I don't have Dennis' paper as a pdf to share with you but you should access the original description in the Kew Bulletin more easily.
Cheers,
Jacques
here is the reference in Kew Bulletin which Jacques mentions (illustration on page 360, protologue on page 362, combined). Described from Lewis - so not that far away from you.
Hope this makes it to you through those westerlies!
best wishes
Chris
I did look at this species as it's listed in Ellis & Ellis under Ammophila, but was put off by the 'reddish-brown' colour and the spores are a little smaller than mine. However, these things are quite variable and the drawing of the pseudothecium in the Kew bulletin is convincing.
Thank you both once again for your help.
Regards, Chris
interesting species, does anyone have the paper Revista de Biologia 12? I have another species growing on Ammophila still unidentified, perhaps I can do something with it.
regards,
björn
Note the quotation at the beginning from Portugal's epic poem 'Os Lusíadas' http://upload.wikimedia.org/wikipedia/commons/1/1b/Os_Lusiadas_-_Canto_IV_-_87.jpg - Dr Dennis was a man of great, wide-ranging, interests and knowledge. The 'old alliance' to which he refers is that between Portugal and England - not the 'auld alliance' between Scotland and France (against England). Of course the Portuguese-Spanish-British alliance saw Napoleon's troops out of the Peninsula, but thankfully we are all allied now in our love of the Ascomycota! . . .
Amitiés
Chris
1983-v12-p15-0001.pdfThat is a very useful paper for me with kilometers of Ammophila to look at. I will be spending some time on the species this year.
I note the spore-size in this paper and in Ellis & Ellis are the same - one presumably cribbed from the other. I wonder if my slightly larger measurements reflect a truer overall range for this species?
Cheers, Chris
Nice find - and I'm grateful to others for doing the hard work of identification! It would be very interesting to determine whether this species is common within its chosen habitat, we know so little about rarity in fungi. If you do come across it again, could you please send a collection to Kew?
Very best wishes
Paul
I have some more in the house which I'll dry on the dead inflorescence and send down.
Best wishes, Chris
Hi all,
Just a question. Had you looked towards Phaeosphaeria maritima ? (in Mycotaxon 15 (196-198))
Apical appendages characterize this species.
Alain
Phaeosphaeria maritima doesn't feature in my reference books, so I hadn't considered it.
An interesting point you raise regarding apical appendages as I've found no reference to them in Tubeufia parvula. Other characters are very similar with the exception of the ascomata: Phaeosphaeria maritima are largely submerged in the substrate while Tubeufia parvula are superficial on a hyphal mat as an anchor.
Material has been sent to Kew so it will be interesting to see what they make of it.
Regards, Chris
judging from Eriksson's decription there are other deviating points. Curiously he did not mention the colour of ascospores, one can guess they are pigmented since he placed the fungus in Phaeosphaeria. The ascomatal habit, superficial with a reduced hyphal mat at the base illustrated by Chris and Dennis does not fit the immersed ascomata described by Eriksson. The well- differentiated apex of Chris' fungus is likewise fairly different from the Phaeosphaeria.
Chris, you have to get back to the seashore between two storms, take care of this problem and find both species and write a nice paper about their comparison!
Chers,
Jacques
Ha ha, you don't ask much of a humble crofter, Jacques.
Let's see what we can find in the next year or two.
Cheers, Chris
Salut Jacques,
Les différences que tu pointes sont là en effet. En particulier tu soulignes que les Phaeosphaeria ont des spores au moins légèrement pigmentées. Dans la même publication, il arrive qu'il ne représente pas ou ne cite pas la coloration d'ascospores d'autres taxons. Etonnant en effet.
Ceci étant je trouvais quand même intéressant de citer ce taxon, surtout à cause de la présence de ces capuchons gélatineux. Au moins il aura le mérite de nous faire creuser et tu as trouvé de quoi occuper Chris :)
"Tubeufia" parvula reste le meilleur candidat pour l'instant, je suppose que c'est ton avis aussi.
Alain
nous voilà avec un Tubeufia qui n'en est pas un mais on s'est bien amusé!
Amitiés,
jacques