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12-11-2014 19:55

Joop van der Lee Joop van der Lee

Found on cow dung.It looks as if it developes two

11-11-2014 12:01

Randi Danielsen

Does anyone recognize these spores? I am a palaeob

11-11-2014 22:18

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Good evening,I got an exsiccate of Smardaea found

11-11-2014 00:47

Masanori Kutsuna

Hello everyone, I found small discos on sclerotia

10-11-2014 21:19

Bometon Javier Bometon Javier

Apotecios de 1300-1500 um.Esporas verrugosas de 15

07-11-2014 16:02

Leandro Sánchez Leandro Sánchez

Jusqu'à 20 mm diamètre.Je pense cupuliformisCord

10-11-2014 10:37

Alain GARDIENNET Alain GARDIENNET

Bonjour à tous, Quelqu'un parmi vous possèderai

03-11-2014 07:56

Guy Garcia

Hi all,I search KEISSLER K. VON 1930 Die Flechtenp

09-11-2014 14:41

hannie wijers

Hello, I would like to appeal to you. Looking for

08-11-2014 12:54

Beñat Jeannerot Beñat Jeannerot

Adio to all,Une Helvelle, Sedzere (64), chemin agr

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Gonatobotrys simplex
Joop van der Lee, 12-11-2014 19:55
Joop van der Lee

Found on cow dung.
It looks as if it developes two kinds op conidia's circular and ovel shaped on two places of the stem.
Circular conidia's are covered with wrats and the oval conidia's are not.


Stem: hyaline; 420-450x3-3.5um; septated, with two conidia origins; distance between origins 13-14 um; stem can be branched.
Oval conidia's: 7-8x2.5-3.5 um
Circular conidia's: 6-7 um in diameter. 

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Chris Yeates, 12-11-2014 20:50
Chris Yeates
Re : Phycomycete?
Hello Joop
the 'hyphomycete' with the elongate conidia looks very like Gonatobotrys simplex (anamorphic Melanospora damnosa (Sacc.) Lindau), a species which is often found associated with other fungi. Your photo's show these conidia both on the apical and the intercalary swellings.
The globose conidia I don't know about - are you absolutely sure only one fungus species is involved here? Might these globose conidia be "strays".
cordialement
Chris
Joop van der Lee, 13-11-2014 08:37
Joop van der Lee
Re : Phycomycete?

Hello Chris,


You probably may be right that we do have two different species, one with elongated codidia's and one with globose conidia's.
The stem with elongated conidia's does not have an intercalary swelling underneath the apical one, and the is branched. 
The stem with globose conidia's is not branched, but the photo's also show elongated originating from the intercalary swelling.


On the other hand the last photo gives the impression that the elongated conidia's are attached to the bulbous thickening of the stem.
The photo of the species on dung, although not good in focus, clearly shows globose conidia's on top of the stem and a bunch of conidia's beneath the top not positively identified as being elongated or globose.


I will have a look for more species hopefully solving the identification problem.


 


Joop

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Chris Yeates, 13-11-2014 12:08
Chris Yeates
Re : Phycomycete?
I am pretty certain that Gonatobotrys simplex is definitely there, or something extremely similar . . .
Chris
Joop van der Lee, 13-11-2014 19:58
Joop van der Lee
Re : Phycomycete?
Thanks Chris