Type species: A. stellatus de Bary References: Drechsler 1929; McKeen 1952b; Scott 1961.

1. Aphanomyces cladogamus: M1, M23. 2. Aphanomyces sp.: M1, M23.

1-1 Aphanomyces cladogamus Drechsler Zoospores formed inside hyphalike sporangia, moved in a row and subsequently encysted in a mass at the tips. Oogonia including aplerotic oospores terminal, often aggregated, bearing monoclinous antheridia supported often on coiled hyphalike antheridiumphores.