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24-03-2019 00:18

Joop van der Lee

Found on horse dung,Again I found apothecia (2) th

21-03-2019 11:32

Michel RIMBAUD

Bonjour,Récolté il y a quelques jours sur bois p

23-03-2019 23:36

Joop van der Lee

I am looking for the following documenttion.Chalaz

23-03-2019 20:26

Michel Delpont Michel Delpont

Bonsoir! Je suis à la recherche de cet article:

22-03-2019 16:28

Stefan Blaser

Hello everybody, I'm really at a loss with this o

22-03-2019 23:06

Joop van der Lee

Found on deer dung.Ascomata: yellow with setae gro

22-03-2019 21:41

Joop van der Lee

Found on deer dung during examination of another s

23-03-2019 16:06

Peter Thompson

Hello Everyone,I have found perithecia of a black

21-03-2019 01:15

Valencia Lopez Francisco Javier

Hola amigosAdjunto fotos macro/micro de unos Ascob

22-03-2019 13:37

Castillo Joseba Castillo Joseba

Me mandan la muestra seca de Galicia,  recolectad

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Cf. Paraleptosphaeria
Bernard Declercq, 10-10-2018 19:04
Bernard DeclercqHi to all,
Collected on branch of Rosa sp. in Switzerland:
Ascomata erumpent, globose, 0.8-0.9 mm diam., solitary to gregarious, blackish, coriaceous, apically ostiolate, roughened wall, with basal setae and numerous anchoring hyphae.
Asci cylindrical, bitunicate, 8-spored, up to 160x10-12 µm.
Spores fusiform, pointed ends, straight to slightly curved, 36-48x5-6.5(7) µm, 1-septate, slightly constricted at the septum, cell swollen close to the middle septum, guttulate, smooth, hyaline, becoming pale brown, finely verruculose and sometimes 3-septate.
Hamathecium of numerous filiform 1-2 µm diam. pseudoparaphyses.
Peridium with dark brown outer layers and hyaline inner layers of textura angularis.

Your help is welcome.

Bernard Declercq
  • message #54868
  • message #54868
  • message #54868
Mlcoch Patrik, 11-10-2018 11:57
Mlcoch Patrik
Re : Cf. Paraleptosphaeria
Hi, Bernard, 
This is very interesting collection, with Rosa is know only Leptosphaeria hazslinszkii, but it isn´t here. With the genus Paraleptosphaeria this can be only P. praetermissa, which growing on the Rubus and can also growth on another taxa with Rosaceae. Based to morphology of ascospores it belong to Leptosphaeria purpurea group. I don´t have to say, what it is, but I will like take to look on this your collection. Can you send me, please?