09-03-2016 09:51
Dragiša SavicLast year I found Thyronectria lamyi on a branch o
06-03-2016 22:19
Bernard CLESSE
Voici un asco sur place à feu que je pense être
08-03-2016 16:37
Joop van der Lee
Found on horse dung.Ascomata: 573.4 um wide and 39
07-03-2016 19:01
Enrique Rubio
Hi to the Orbilia lovers This nice species was fo
07-03-2016 18:11
Alain GARDIENNET
Dear forum, I'm looking for pages about Myxophora
08-03-2016 12:09
Castillo Joseba
Posiblemente en madera de eucaliptoTengo muchas du
07-03-2016 11:31
Gernot FriebesHi,this species, which I assume is an Amphisphaeri
08-03-2016 10:53
Castillo Joseba
en una muestra de Phytolacca americana, en la que
Growing on Acer macrophyllum (bigleaf maple). Seen at the Yuba Watershed Fungus Fair.No asci observed. Many parathyses with tiny oil drops were seen, they measured 30 – 45 × 2 – 3 micrometers. Many clavate basidia-like things seen, however they never had sterigmata or spores inside. Those measured (28) 36 – 47 x (5) 7 – 8 micrometers.
That is probably Rhytisma punctatum. The US host-index lists it on Acer macrophyllum in California, Oregon and Washington. The "clavate, basidia-like things" are probably immature asci. These would be mature in the spring at about the time the new leaves are emerging on the tree.
Dave
Here are some more macro images... http://mushroomobserver.org/156379?q=1higi?
Edit: I understand that punctuate dots like this on Acer macrophyllum = R. punctatum, but there is another species with a somewhat similar appearence on other maples.
http://www.glfc.forestry.ca/VLF/ForumPresentations/hsiangtarspot_08e.pdf