Phylogeny of Podosphaera sect. Sphaerotheca subsect. Magnicellulatae (Sphaerotheca fuliginea auct. s.lat.) inferred from rDNA ITS sequences: a taxonomic interpretation

Abstract

Braun, U., Shishkoff, N. & Takamatsu, S. 2001: Phylogeny of Podosphaera sect. Sphaerotheca subsect. Magnicellulatae (Sphaerotheca fuliginea auct. s.lat.) inferred from rDNA ITS sequences – a taxonomic interpretation. Schlechtendalia 7: 45-52. Ergebnisse einer phylogenetischen Analyse des Podosphaera (Sphaerotheca) fuliginea-Komplexes auf Grundlage von rDNA-ITS-Sequenzen werden taxonomisch ausgewertet. Unter Anwendung eines morphologischen Artkonzepts, hauptsächlich auf Grundlage der Fruchtkörpergröße und des Durchmessers der dünnwandigen Scheitelregion der Asci (Oculus), in Verbindung mit biologischen Daten, wird der gegenwärtige taxonomische Status von P. balsaminae, P. diclipterae, P. fuliginea, P. intermedia, P. pseudofusca und P. sibirica bestätigt. P. fusca emend. und P. xanthii emend. werden neu als komplexe Sammelarten bewertet. P. euphorbiae-hirtae und P. phaseoli werden zu P. xanthii gestellt.

Braun, U., Shishkoff, N. & Takamatsu, S. 2001: Phylogeny of Podosphaera sect. Sphaerotheca subsect. Magnicellulatae (Sphaerotheca fuliginea auct. s.lat.) inferred from rDNA ITS sequences – a taxonomic interpretation. Schlechtendalia 7: 45-52. Data of a phylogenetic analysis of the Podosphaera (Sphaerotheca) fuliginea complex based on rDNA ITS sequences are taxonomically interpreted. Using a morphological species concept, mainly based on the size of the ascomata and the diameter of the thin-walled apical portion of the asci (oculus), combined with biological data, the present taxonomic status of P. balsaminae, P. diclipterae, P. fuliginea, P. intermedia, P. pseudofusca and P. sibirica as separate species has been confirmed. P. fusca emend. as well as P. xanthii emend. are reassessed as complex, compound species. P. euphorbiae-hirtae and P. phaseoli are reduced to synonymy with P. xanthii.