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17-02-2014 16:57

Chris Yeates Chris Yeates

I have collected a Leptosphaeria on the dead stem-

15-02-2014 18:02

Björn Wergen Björn Wergen

Hi there,does anybody have this paper?MÜLLER, E.

16-02-2014 11:11

Alain GARDIENNET Alain GARDIENNET

Bonjour à tous, Auriez-vous cet article : New

15-02-2014 10:59

FRANCIS FOUCHIER

Bonjour je recherche une clé des Plectania-Donadi

13-02-2014 11:36

Pollard Adam

Doesn't match anything in Ascomycetes in Colour or

15-02-2014 13:40

Joop van der Lee Joop van der Lee

Found on cow dung.Spores: 4.5-5x2.5-3 um

14-02-2014 16:39

Gernot Friebes

Hi,I'm currently trying to identify a Sillia speci

29-11-2013 13:07

Vasileios Kaounas Vasileios Kaounas

Found at 28-11-13, Attica Greece, in sandy soil, f

14-02-2014 10:50

Stefan Blaser

Hello everybody Can anyone give me some advice on

11-02-2014 18:29

Enrique Rubio Enrique Rubio

Hello forum Someone have a pdf of this paper ?: W

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Leptosphaeria puzzle
Chris Yeates, 17-02-2014 16:57
Chris YeatesI have collected a Leptosphaeria on the dead stem-bases of last year's Tanacetum vulgare.The spores are almost all 3-septate, with a few developing a fourth, and a very few developing a fifth septum. Spore measurements are 19.1-23.9 x 5-5.7µm, in other words perfect for L. doliolum; however try as I might I cannot see evidence of the concentric ridge(s) on the pseudothecia which I would expect on that species, whether they are occuring below the stem cortex or on the bare stems. Photo's below: any suggestions welcome.
Chris
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