Accès membres

Mot de passe perdu? S'inscrire

20-03-2014 12:06

Bernard Declercq Bernard Declercq

Hi to everyone,I am looking for following paper:Ho

18-03-2014 22:52

Salvador Tello

Hola.Tengo estos hongos que crecen en restos de gr

20-03-2014 15:10

Zoltan Lukacs Zoltan Lukacs

Hello, I'm looking for: Herter W.G. 1951 Revista

18-03-2014 01:19

Roland Labbé

Bonjour ! Voici un Lachnellula willbommii probab

18-03-2014 18:34

Björn Wergen Björn Wergen

Hi there,does anyone have these articles?Booth, C.

14-09-2013 16:00

Alessio Pierotti Alessio Pierotti

For a systematic work on the evolution of certain

19-03-2014 10:42

Ivana Kusan Ivana Kusan

Hi to all!Does anyone know where this book can be

18-03-2014 21:52

Ralph Vandiest Ralph Vandiest

Hello,I found these very small hairy frb (0,06mm)

18-03-2014 14:12

Joaquin Martin

HolaRecogi esta orbilia sobre angiosperma en bosqu

18-03-2014 11:39

Joop van der Lee Joop van der Lee

Found on cow dung.Although the tip of the ascus co

« < 1195 1196 1197 1198 1199 > »
Nectria-like
Bernard Declercq, 03-07-2016 18:29
Bernard DeclercqHi,

Collected in October 1992 on decaying petioles of Petasites hybridus:
Perithecia superficial, gregarious, subglobose, flattened upper part, 0.3-0.4(0.5) mm diam., indistinct papillate, yellow-orange, with a crown of spreading, hyaline hairs.
Asci 8-spored, 73-83x9-10 µm.
Spores narrowly ellipsoid, 18-23(25)x5.5-7 µm, 1-septate, filled with 1-2 µm diam. guttules, smooth, hyaline.
Perithecial wall of textura angularis. Processes tapering, up to 115x13 µm, composed of agglutinated 2 µm diam. hyphae, hyaline.
Only a drawing available. Any idea? Thanks in advance.

  • message #43625
Christian Lechat, 03-07-2016 21:09
Christian Lechat
Re : Nectria-like
Hi Bernard,
Description of ascomatal wall, colour of perithecia in KOH as well as in lactic acid are required.
If there is no changing colour, you have choice among four genera:
Lasionectria, Lasionectriella, Ijuhya and Hydropisphaera, which are separated by characteristics of the cells composing the wall.
Did you see some orange, oily droplets in ascomatal wall or in hymenium?

Good luck
Christian