Podosphaera balsaminae (Wallroth) Braun & Takamatsu, 2000

on Impatiens

gall

mycelium amphigenous, mostly epiphyllous, thin. Appressoria indistinct to ± nipple-shaped, single. Conidia formed in chains, with fibrosin bodies. Cleistothecia containing a single ascus with (6-)8 spores. Appendages numerous, sub-equatorial, 0.5-5 x the diameter; they are rather coarse and straight, only rarely branched, brown, septate.

host plants

Balsaminaceae, narrowly monophagous

Impatiens ca[ensis, noli-tangere

Podosphaera’s on other Impatiens species are more closely related with P. xanthii (Braun & Cook).

synonyms

Sphaerotheca balsaminae (Wallroth) Junell, 1966.

references

Braun (1995a), Braun & Cook (2012a), Bresinsky (2016a), Czerniawska (2001a), Dynowska, Fiedorowicz & Kubiak (1999a), Fraiture & Vanderweyen (2009a), Jage, Klenke & Kummer (2010a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2019a), Kruse, Thiel, Braun, ao (2018e), Leysen (2017a), Ludwig (1975a), Mułenko, Sałata & Wołczańska (1995a), Ruszkiewicz-Michalska & Michalski (2005a).