Suctoria, [158], [162]

—see also Symbiosis

Equatorial plate (= the collective chromosomes at the equator of the spindle in mitosis), [25], [27]

Equiangular, [185]

Errina, [284], [286];

E. glabra, [286];

E. ramosa, [286]

Ersaea, [306];

E. picta, [303]

Esperella, [225], [231]