06-03-2025 23:27
Edvin Johannesen
Hello!I have a collection of Asterosporium asteros
06-03-2025 21:53
Charles Grapinet
Hello, I found a very abundant Phaeosphaeria on t
04-03-2025 15:38
Hardware Tony
Found on I what I think is Phyllostachys aurea, mo
06-03-2025 11:45
Wim de GrootSeveral smal patches of Hypoxylon ticinense (sl?)
06-03-2025 17:23
Vasileios Kaounas
Found 13/2/25 on moss, very far away, only almond
30-06-2018 14:36
Jan KnuimanGrowing on a rotten twig of a broadleaf tree (Sali
03-03-2025 08:10
Juuso ÄikäsI recently found these quite small fruitbodies gro
05-03-2025 08:53
Thomas LæssøeWith hyper fusiform-pointy spores.https://svampe.d
03-03-2025 08:20
Bernard CLESSE
Une idée sur ces petites boules blanches sur mou
Dear FriendsCan 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