Oidium

  • Kingdom

    Fungi

  • Division

    Ascomycota

  • Family

    Erysiphaceae

  • All Determinations

    Oidium

NITED STATES DEPARTMENT OF AGRICULTURE,
Bureau of Plant Industry,
PATHOLOGICAL ANI) MYCOLOGICAL COLLECTIONS.
Oidium sp.
On Rhus slabra
Mo. Bot. Gardens, St* Louis, Huly 1905.
Coll. Perley Spaulding.
03607371