29-04-2015 14:19
Enrique Rubio
Hi to everybody I would know your opinion about t
30-04-2015 16:42
Garcia SusanaHi all:Can someone send me a pdf of the article:Sh
30-04-2015 09:30
Alex Akulov
Dear friendsAmong the old samples, which are store
30-04-2015 12:00
Katarina PastircakovaHi there, Does anyone have these papers? Bagyana
29-04-2015 11:36
Jean-Louis JALLA
Bonjour à tous.Je sollicite votre aide pour ce pe
Hi,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.
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