01-05-2024 12:54
F. JAVIER BALDA JAUREGUIHello, everyone.An idea for this pyreno, I found u
29-04-2024 21:32
Robin IsakssonHi! Found in Sweden. Ascomata with haris, se
30-04-2024 19:43
Gernot FriebesHi!We observed this hyphomycete growing between le
30-04-2024 16:22
François BartholomeeusenDear forum members,On April 25 2024, I found one f
29-04-2024 21:51
Mathias HassHi everyone, Found on attached branches of top pa
28-04-2024 18:05
Bernard CLESSEBonsoir à toutes et tous,J'ai trouvé ce matin ce
24-03-2024 08:27
Thierry BlondelleHiOn Hedera helix fallen branchEcological habitat:
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