17-09-2025 10:50
Heather MerryleesHi there!I am hoping for any advice on the identif
11-09-2025 16:57
Jason Karakehian
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
Enrique Rubio
Hi to somebody.I would like to know your opinion o
15-09-2025 14:40
Nicolas VAN VOOREN
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
10-09-2025 17:18
Blasco Rafael
Hola, encontre este estiercol de vaca estos apotec
13-09-2025 14:10
Wim de GrootWe found this hymenoscyphus on rubus fruticulosis.
10-09-2025 23:53
Marcel Heyligen
Found on Robinia pseudoacasia together with Diapor
Hello all, I noticed a gelatinous substance on cone scales of Pinus sylvestris, in many (but not all) cases associated with black perithecia.
Spores / conidia from the black perithecia were light brown, simple but some faintly 1-septate, 29-37 x 15 µm - smaller than those suggested by Christian Lechat as Sphaeropsis sapinea in different post, but within the size range for that species?
Conidia from the gelatinous substance were hyaline, c. 24-29 x 3-4 µm. Are these from a different fungus?
With regards,
Jenny
I would still be happy that that is Sphaeropsis sapinea; I have seen it with two and even on occasion three septa. Regarding your second fungus, although your conidial sizes are at the very top end I would wonder about these being beta-condia of Phomopsis conorum now treated as one of the numerous synonyms of the plurivorous Diaporthe eres; I see this is currently in Species Fungorum under an anamorph name - "One Fungus, One Name" at work here? http://www.speciesfungorum.org/Names/SynSpecies.asp?RecordID=123547
best wishes
Chris
With regards
Jenny
you won't necessarily be able to find the teleomorph. It is quite common to find Phomopsis spp. on dead twigs, stems, leaves etc., without the accompanying Diaporthe.
After a while recognising Phomopsis alpha*- and ß-conidia is generally quite straightforward - do you have access to the two volumes of British Stem & Leaf Fungi by W.B. Grove?
best wishes
Chris
*system is not letting me enter the Greek letter
This may work better the first did not take you to the book or download page
http://bibdigital.rjb.csic.es/ing/FichaLibro.php?Libro=5228
With regards,
Jenny