30-11-2025 10:47
William Slosse
I recently found a collection of small Peziza sp.
27-11-2025 12:01
Thomas Læssøehttps://svampe.databasen.org/observations/10496727
27-11-2025 11:46
Thomas Læssøehttps://svampe.databasen.org/observations/10493918
17-09-2025 10:50
Heather MerryleesHi there!I am hoping for any advice on the identif
29-11-2025 08:40
Andreas Millinger
Hello,on a splintered part of a branch on the grou
28-11-2025 16:45
Nogueira HéctorNovember 23, 2025 Requejo de Sanabria (León) SPAI
25-11-2025 14:24
Thomas Læssøehttps://svampe.databasen.org/observations/10490522
27-11-2025 15:41
Thomas LæssøeSpores brownish, typically 4-celled; 26.8 x 2.4;
27-11-2025 11:31
Thomas LæssøeCollectors notes: Immersed ascomata, erumpent thro
23-09-2025 13:31
Thomas Læssøehttps://svampe.databasen.org/observations/10534623
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