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17-12-2024 12:33

Lothar Krieglsteiner Lothar Krieglsteiner

this fluffy anamorph was repeatedly found on decid

23-12-2024 14:37

Josep Torres Josep Torres

Hello.Some tiny globose black ascomata found on De

23-12-2024 12:10

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

21-12-2024 12:45

Marc Detollenaere Marc Detollenaere

Dear Forum,On naked wood of Fagus, I found some ha

22-12-2024 21:42

Bometon Javier Bometon Javier

Habitat en el suelo, con presencia de Calluna mult

22-12-2024 10:19

Simon Gurtner Simon Gurtner

Hello,can anyone help me identify this small ascom

22-12-2024 10:53

Bernard CLESSE Bernard CLESSE

Pourriez-vous me confirmer ma détermination de ce

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Louis DENY

Bonsoir forumTrouvé à Belfort, 400 m altitude, s

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Castillo Joseba Castillo Joseba

me mandan elmaterial seco de Galicia,  recolectad

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Michel RIMBAUD

Hello,Does somebody could send me a key for Olla/U

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Lophio on Phragmites
Martin Bemmann, 16-07-2010 00:45
Martin BemmannHi again,

I found these today on a dead stem of Phragmites lying on the ground. Maybe the host will help to determin? Spore size is 34.6-41 x 5.3-6.8(8.4) µm. Is it Lophiostoma vagabundum again, that I found on Hedera before?

Best regards,

Martin
  • message #12357
Martin Bemmann, 16-07-2010 00:46
Martin Bemmann
Re:Lophio on Phragmites
closer
  • message #12358
Martin Bemmann, 16-07-2010 00:46
Martin Bemmann
Re:Lophio on Phragmites
an ascus
  • message #12359
Martin Bemmann, 16-07-2010 00:46
Martin Bemmann
Re:Lophio on Phragmites
paraphyses
  • message #12360
Martin Bemmann, 16-07-2010 00:47
Martin Bemmann
Re:Lophio on Phragmites
and spores
  • message #12361
Hans-Otto Baral, 16-07-2010 08:41
Hans-Otto Baral
Re:Lophio on Phragmites
I have a collection identified as Lophiostoma semiliberum, F-Deux Sèvres, Marais de Poitevin, Phalaris culms, leg. Ch. Lechat & M. Hairaud, soc. Parachnopeziza phalaridis. Perithecia immersed beneath epidermis, with a narrow projecting ostiole (round to flattened in top view). Sp. *29-36 x 5-5.4 µm, 1-septate, slightly inflated and constricted at septum, here with 0.8 µm thick gel sheath in *asci, ends without appendages or with inconsp. acute caps, old 6-septate, 37 x 5.5 µm, light grey-brown.

Apparently I identified myself, so this is not certain.

Zotto
  • message #12364
Bernard Declercq, 16-07-2010 11:17
Bernard Declercq
Re:Lophio on Phragmites
I agree with Zotto.
Moreover spores of Lophiotrema vagabundum ss. str. have a thick mucous sheath while spores of Lophiostoma semiliberum have (sometimes) only small polar mucous caps.

Bernard
Martin Bemmann, 16-07-2010 16:55
Martin Bemmann
Re:Lophio on Phragmites
Hi Zotto and Bernard,

thank you for your determination! Zotto's collection and mine seem to be very similar. And what I have read now in literature (Saccardo, Migula) fits very well, too. Munk (Danish pyrenomycetes, 429) considers L. semiliberum to be unmature L. arundinis. But the clades in Zhang et al. FD 2009 seem to show that they are very close but not identical (I am not good in reading parsimony trees...).

@ Bernard: thank you also for giving me these distinguishing details. I am now even more unsure that my other find on Hedera is really L. vagabundum.
I have attached a picture of some spores of this find ((26,1)28,2-33(37,8) x 6,1-7,4(7,9) µm).
I can't remember how I came to this determination. I found it together with Unguiculella eurotioides on the same branch and I was more engaged with the latter...

Best regards,

Martin
  • message #12372
Hans-Otto Baral, 16-07-2010 19:49
Hans-Otto Baral
Re:Lophio on Phragmites
There is also a record in Ascofrance by Alain, but on Urtica

http://www.ascofrance.fr/index.php?r=bdd&page=fiche&id=2350
Zotto
Martin Bemmann, 16-07-2010 21:31
Martin Bemmann
Re:Lophio on Phragmites
Yes I saw this docu, but are only these encircled ascocarps the questionable ones, Alain? They look like a Hysterium (joking ;-) ). But I have no experience in the variability of this genus...

Cheers,

Martin