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24-05-2009 14:49

Scopinella sp. from the Vinis vinifera branch
Perz Piotr

Hi ;-) While looking for Discomycetes on Vinis

18-09-2011 19:58

Pionnotes ou Fusarium ?
Bernard WOERLY

Bonjour à tous,nouvel inscrit sur ce forum, j'ai

19-09-2011 20:03

Peziza non amyloïde
Michel Hairaud Michel Hairaud

Bonjour à tous,  Hi to all ,Voici une récolte d

20-09-2011 18:24

Hyalacrotes?
Marja Pennanen

Hello,once again I'm confused. Yesterday I found s

16-09-2011 17:34

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Peter Welt Peter Welt

Search only: Hughes, S.J. (1951). Studies on micr

15-09-2011 10:36

Demande de littérature
Bernard Declercq Bernard Declercq

Bonjour à tous,Je cherche la description original

09-09-2011 15:50

Morchella steppicola, help to translate, Deutsch
Yatsiuk Iryna Yatsiuk Iryna

I'm very interested in Haffner's paper about stepp

03-09-2011 11:14

Next search of literature
Peter Welt Peter Welt

Search Now:Locq.-Lin. (1983) Trois Nouvelles espec

12-09-2011 17:10

Peziza de Beata Ruris
Cacialli Gabriele Cacialli Gabriele

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11-09-2011 13:24

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Peter Welt Peter Welt

Who knows still finds of Unguiculella tityri? One

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Identification of spore trap spores
Martin Mullett, 29-09-2011 18:05

 Hello all,


I am running a spore trap (Burkhard) in a forest in the southeast of England and am having difficulty identifying some (or many!) of the spores.
I was wondering if anyone recognizes the ones in the photos?  They are very distinct, long (some 100um) and seem to be trapped on a rainy day in middle of June after a long dry period.  Unfortunately nothing is known about the fruiting body.
Does anyone have any ideas??


Many thanks,


Martin

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Hans-Otto Baral, 29-09-2011 18:13
Hans-Otto Baral
Re : Identification of spore trap spores
Hi Martin

this reminds me of ascospores of Ophiobolus, üartly broken in two parts, with one cell inflated in the middle.

Zotto
Peter Welt, 29-09-2011 18:45
Peter Welt
Re : Identification of spore trap spores

Hi Martin,

This is almost certainly Ophiobolus acuminatus. I the middle of the constricted (Fig. 2 middle), and it thickened spores are typical for this species.

Peter

Martin Mullett, 30-09-2011 20:48
Re : Identification of spore trap spores
Hello Peter and Zotto,
Yes it is Ophiobolus, it fits perfectly!! Thank you very much for your help!
Can I ask if you think this new photo is a Fusarium species?  It reminds me of Fusarium with a sort of 'heel cell' but it doesn't seem quite right.
Thanks again for your help!

Martin
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Hans-Otto Baral, 30-09-2011 21:07
Hans-Otto Baral
Re : Identification of spore trap spores
Hi Martin

sorry I can't. But a question: do you always kill the spores that you trap? I think they will not run away if you use tap water instead.

But without joking: I recognize species much easier when the spores are alive, when I see the guttules inside etc. And they are well visible on photos without staining.

Zotto
Martin Mullett, 04-10-2011 13:47
Re : Identification of spore trap spores
Haha,
Yes you are right, they shouldn't run away!  But sometimes they do germinate before I am able to have a look at them.  But maybe I will be kinder and not kill them straight away in the future :)

Thanks,

Martin