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13-02-2015 21:38

Malcolm  Greaves Malcolm Greaves

I came across this growing on and around some Podo

14-02-2015 21:00

Jenny Seawright Jenny Seawright

Hello all, This Coprotus appeared on rabbit dung a

15-02-2015 10:09

Leandro Sánchez Leandro Sánchez

Sur Quercus, diamètre max 7 mmCordialement

15-02-2015 11:52

Vasileios Kaounas Vasileios Kaounas

Found 114-02-15, in rotten pine nuts of Pinus hale

14-02-2015 13:39

hannie wijers

Hello, On a branch of hardwood (which is unknown,

12-02-2015 14:58

Björn Wergen Björn Wergen

Hi friends,I am looking for this one:Kutorga E, Ha

13-02-2015 15:33

Pavol Palo

Hello, dear friends.Thank you in advance for your

13-02-2015 14:40

Mario Filippa

January 6, 2015. On decorticated wood of Alnus glu

12-02-2015 19:56

Godorova Olga Godorova Olga

Hello, dear friends.Two days ago we were in Negev

13-02-2015 01:22

Malcolm  Greaves Malcolm Greaves

This Podospora was on horse dung. At first I was c

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Non Asco
Malcolm Greaves, 13-02-2015 21:38
Malcolm  GreavesI came across this growing on and around some Podospora on sheep dung and although I think it might be a Hyphomycete and I know that is not the purpose of this forum but has anyone come across anything similar.
The distinctive multi septate spores are up to 90 x 10.5.
Thanks
Mal
  • message #33808
  • message #33808
Hans-Otto Baral, 13-02-2015 22:02
Hans-Otto Baral
Re : Non Asco
This looks much like the anamorph of Orbilia fimicoloides, Dactylella oxyspora. Conidial size fits well.

Zotto
Mateusz Wilk, 13-02-2015 22:03
Re : Non Asco
Dear Malcolm,

Could be some species of Dactylella, these are nematophagous fungi and occur often on plant litter or dung.
No idea about the species...

Best wishes,
Mateusz
Mateusz Wilk, 13-02-2015 22:05
Re : Non Asco
Blast!
Zotto was faster and much more precise again!;)

Mateusz
Hans-Otto Baral, 13-02-2015 22:14
Hans-Otto Baral
Re : Non Asco
And I should add that Dactylella is in fact non-nematophagous, although very closely related to the nematophagous group. This is strange because this species was repeatedly found on dung, though more often on herbaceous stems.
Mateusz Wilk, 13-02-2015 22:32
Re : Non Asco
Ah, indeed, I see now that after the revision by Rubner (1996) all nematophagous species were excluded. I remember some older studies, by Drechsler from 1940', and by Cooke and Dickinson (1965), where all those Dactylella and Monacrosporium were treated together.
I have observed them more frequently on strongly decayed plant material with abundant infestation with nematodes and other fauna, and I thougth that was not a coincidence. But indeed I have never seen the very act of capturing the prey, nor I was able to see any adhesive hyphae.

Mateusz
Hans-Otto Baral, 13-02-2015 22:46
Hans-Otto Baral
Re : Non Asco
It is right that in earlier times the genera were separated by conidial septation and conidiophore types, bit since the genetic work of Hagedorn and Scholler the trapping organs play the major role.  These organs are indeed not easily discovered. We have seen them occasionally on the natural substrate (constricting rings, adhesive knobs and pegs, but never adhesive nets).
Chris Yeates, 13-02-2015 23:17
Chris Yeates
Re : Non Asco
@Malcolm
It should also be said that 'hyphomycetes' and 'coelomycetes' - at least the vast majority of them - are anamorphic Ascomycota, and therefore very much included in "the purpose of this forum" ;-)
kind regards
Chris
Malcolm Greaves, 15-02-2015 15:03
Malcolm  Greaves
Re : Non Asco
Thanks all for this information.
Mal