02-06-2026 14:33
Nicolas VAN VOOREN
Hello.I'm searching for a PDF copy of the followin
02-06-2026 17:58
Louis DENYBonjour forum, Sur feuille de Populus tremula, en
28-07-2011 18:31
Alex Akulov
Dear FriendsToday I made the pdf file of Velenovsk
11-09-2025 16:57
Jason Karakehian
Our revision of Marthamycetales (Leotiomycetes) is
12-11-2019 10:32
Miguel Ángel Ribes
Hi againExactly at the same place than my previous
25-12-2019 17:54
Valencia Lopez Francisco JavierHola a todos/asEstas supuestas pezizas estaban en
12-07-2015 00:05
Nedim Jukic
This one from the same locality as the previous on
30-05-2026 21:12
Philippe PELLICIERSur branche de mélèze (Larix) près de la neige,
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