31-12-2025 19:27
Collected from loamy soil, at waterside (completel
30-12-2025 16:44
Pascal DucosBonjour,Une anamorphe rose stipitée, très nombre
30-12-2025 17:14
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous aider Albe
29-12-2025 10:15
Hulda Caroline HolteHello, I found and collected this propoloid ascom
30-12-2025 09:04
Hello.A Pyrenomycete sprouting sparsely but very d
29-12-2025 17:44
Isabelle CharissouBonjour,J'aimerais savoir si d'autres personnes au
12-11-2021 00:03
Lepista ZacariasHi everybody,A week ago in my fiels trip I noticed
Cf. Paraleptosphaeria
Bernard Declercq,
10-10-2018 19:04
Hi to all,Collected on branch of Rosa sp. in Switzerland:
Ascomata erumpent, globose, 0.8-0.9 mm diam., solitary to gregarious, blackish, coriaceous, apically ostiolate, roughened wall, with basal setae and numerous anchoring hyphae.
Asci cylindrical, bitunicate, 8-spored, up to 160x10-12 µm.
Spores fusiform, pointed ends, straight to slightly curved, 36-48x5-6.5(7) µm, 1-septate, slightly constricted at the septum, cell swollen close to the middle septum, guttulate, smooth, hyaline, becoming pale brown, finely verruculose and sometimes 3-septate.
Hamathecium of numerous filiform 1-2 µm diam. pseudoparaphyses.
Peridium with dark brown outer layers and hyaline inner layers of textura angularis.
Your help is welcome.
Bernard Declercq
Mlcoch Patrik,
11-10-2018 11:57
Re : Cf. Paraleptosphaeria
Hi, Bernard,
This is very interesting collection, with Rosa is know only Leptosphaeria hazslinszkii, but it isn´t here. With the genus Paraleptosphaeria this can be only P. praetermissa, which growing on the Rubus and can also growth on another taxa with Rosaceae. Based to morphology of ascospores it belong to Leptosphaeria purpurea group. I don´t have to say, what it is, but I will like take to look on this your collection. Can you send me, please?
This is very interesting collection, with Rosa is know only Leptosphaeria hazslinszkii, but it isn´t here. With the genus Paraleptosphaeria this can be only P. praetermissa, which growing on the Rubus and can also growth on another taxa with Rosaceae. Based to morphology of ascospores it belong to Leptosphaeria purpurea group. I don´t have to say, what it is, but I will like take to look on this your collection. Can you send me, please?



D-Paraleptosphaeria-sp.-Rosa-sp.-BD-18065-180904-0001.jpg