07-02-2023 22:28
Ethan CrensonHello friends, On Sunday, in the southern part of
19-02-2026 17:49
Salvador Emilio JoseHola buenas tardes!! Necesito ayuda para la ident
19-02-2026 13:50
Margot en Geert VullingsWe found this collection on deciduous wood on 7-2-
16-02-2026 21:25
Andreas Millinger
Good evening,failed to find an idea for this fungu
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
17-02-2026 17:26
Nicolas Suberbielle
Bonjour à tous, Je recherche cette publication :
Discostroma corticola
William de Jong,
23-12-2021 19:16
A few days ago I found this ascomycete on a dead, but still attached, Rubus branch (The Netherlands). Asci J+, in Melzers a blue apical ring. 8 spores per ascus. Varying from 1 to 3 septate. 3-septate hyaline spores: 16,2-19,2(-19,4)x(5,5-)6,3-7,3(-7,4) µm; average 17,8x6,8; Q=2,64 (n=11). Conidia without appendage, 3-septate, 3 cells brown, 1 end cel hyaline: (13,3-)13,7-15,3(-15,4)x(5,1-)5,4-6,5(-6,9) µm; average 14,5x6,0; Q=2,43 (n=10).
The perfect as well as the imperfect spores perfectly fit the description of Discostroma corticola (Seimatosporium/Sporocadus lichenicola) in Brockman (1976), Sydowia 28 (https://www.zobodat.at/pdf/Sydowia_28_0275-0338.pdf).
When using the key in Paulus B.C., Gadek P.A. & K.D. Hyde (2006), Sydowia 58, I end up with D. rubicola (Metasphaeria rubicola). (https://www.zobodat.at/pdf/Sydowia_58_0076-0090.pdf)
However, the sizes of the conidia don't match at all (22-30x9-10(-12) according to them). Also, there is not much to find about this D. rubicola. But most of all, D. corticola is not mentioned in this study..
Liu et al., Studies in Mycology (2019) 92: 287–415 mentions D. corticola as Sporocadus lichenicola, the ascospore sizes match my finding, however, the conidia don't match (18-25x5.5-8).
Any thoughts on this?
Kind regards,
William de Jong
