07-03-2012 12:13
Dragiša SavicHi everyone,I know for this forum for some time bu
25-03-2012 19:03
Björn Wergen
Hiyesterday I have found a completely immersed pyr
12-03-2012 13:44
Alex Akulov
Dear colleaguesI am very interested in the bookArx
26-03-2012 22:54
Björn Wergen
Hi,does anybody have this paper:SHOEMAKER R. A. 19
27-03-2012 22:14
Roland LabbéBonjour !Voici une planche et une photo macro de c
24-03-2012 12:57
Yannick Mourgues
Hi. Macro : apo with a red to dark red hymenium,
26-03-2012 22:52
M Jonathan
J'ai trouvé un Chlorociboria Sp mais je n'arrive
06-03-2012 13:12
Stefan BlaserHello everybody I hope that anyone can help me wi
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