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20-06-2024 16:07

Nicolas Suberbielle

Bonjour, J'ai trouvé cette espèce sur les feuil

20-06-2024 09:40

Michel Hairaud Michel Hairaud

Bonjour, I can no longer reach  Javier Etayo at

19-06-2024 18:32

François Bartholomeeusen

On female Alnus catkins I found very small fruit b

12-06-2024 22:08

Stip Helleman Stip Helleman

Dear all, a week ago this cushen formed species w

16-03-2018 12:26

Garrido-Benavent Isaac

Dear all,I found this beautful pseudotheciate asco

19-06-2024 17:52

Bernard Declercq Bernard Declercq

Dear all, I am looking for the description and ac

18-06-2024 14:07

Thierry Blondelle Thierry Blondelle

Bonjour,Récolte sur une brindille dans une tourbi

17-06-2024 12:00

Juuso Äikäs

A couple days ago I found some Mitrula fruitbodies

16-06-2024 16:47

Hardware Tony Hardware Tony

These apothecia directly growing on a resupinate,

16-06-2024 14:36

Josep Torres Josep Torres

Hello.An anamorph located in nature, on the surfac

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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