Oidium hortensiae Jørst.

Selection criteria. Country: any country. Associated organism: any (distribution map)

Number of records. 31. Date information. 1952 (Jun, Aug, Oct, Nov). Countries. Armenia, British Isles, Chile, Georgia, South Africa, Ukraine, Zimbabwe. Associated organisms. Hydrangea hortensia; Hydrangea hortensis (leaf); Hydrangea macrophylla (leaf); Hydrangea opuloides; Hydrangea sp. Collections. PREM 23681, 27572, 28802, 30672. Literature. Cannon, Hawksworth & Sherwood-Pike (1985); Doidge (1950) page(s) 670; Hopkins (1930) page(s) 526 [as ‘506’]; Hopkins (1938) page(s) 120; Hopkins (1939) page(s) 23; Marchenko (1979) page(s) 361; Moore (1959); Mujica (1961) page(s) 5; Nakhutsrishvili (1986) page(s) 491; Oehrens (1961) page(s) 59; Simonyan (1994) page(s) 331.