Podosphaera Kunze, Mykol. (Hefte) 2: 111 (1823)
Notes – Many molecular analyses have confirmed that the genera Podosphaera and Sphaerotheca form a clearly single monophyletic clade (Saenz & Taylor 1999; Mori et al. 2000; Takamatsu et al. 2000). Therefore, Braun and Takamatsu (2000) proposed to merge the two genera into an emended genus Podosphaera which subsequently was divided into two non-monophyletic groups, sect. Podosphaera, sect. Sphaerotheca. Section Sphaerotheca was further divided into two subsections, subsect. Sphaerotheca and subsect. Magnicellulatae. In section Podosphaera 86% of hosts and in subsection Sphaerotheca 57% of hosts belong to the Rosaceae and the close evolutionary relationship between Podosphaera and its rosaceous hosts has been revealed by Takamatsu et al. (2010).
Species