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Philippe PELLICIERSur branche morte de Mélèze. Les ascospores sphÃ

17-09-2025 10:50
Heather MerryleesHi there!I am hoping for any advice on the identif

11-09-2025 16:57
Our revision of Marthamycetales (Leotiomycetes) is

16-09-2025 12:53
Philippe PELLICIERPézizes de 1-4 mm, brun grisâtres, sur les capsu

03-09-2025 12:44
Hi to somebody.I would like to know your opinion o

15-09-2025 14:40

Hello.I'm searching for a digital copy of the seco

14-09-2025 22:16
Philippe PELLICIERApothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01
Thomas Flammerdark brown apothecia, splitIKI-Spores biguttulate

Can you tell me whether there are any environmental preferences of species Chlorociboria aeruginella, Ch. aeruginascens and Ch. aeruginosa? I would like to clarify for myself what same species from mentioned above are able to colonize wood of Fagus and cause its greening. I often find a timber devoid of fruiting bodies. Is it possible in this case to talk about any particular species name?
What other criteria besides the size of ascospores are important for these species delimitation?
At one of my samples I found ascospores the following sizes:
(12.3) 13,1-14,5 (15.3) x (2,0) 2,7-3,4. Could this be Chlorociboria aeruginella?
Grateful before,
Alex

C. aeruginella is a species of herbaceous stems and leaves. On wood there is only aeruginascens and aeruginosa, which are indistinguishable from the green stain. But my data on substrate preferences say:
aeruginosa: Betula, Acer, ?Populus
aeruginascens: Quercus, Salix, Alnus, Carpinus, Fraxinus, Fagus, Laurus.
But Dixon gives also Betula for aeruginascens, and even conifers, and for aeruginosa? a very similar host spectrum.
Your spores perfectly fit to the more rare aeruginosa. Both species have short flexuous haurs but those of aeruginosa are warted, those of aeruginascens smooth.
Zotto