The male flowers ofHydatella inconspicua(cheesem.) cheesem. (centrolepidaceae)

Abstract

The male flowers of Hydatella inconspicua, first seen in January 1966, are described, Male and female flowers are borne in separate inflorescences on the one plant, but plants bearing a male inflorescence are rare and most plants are entirely female. A very few meagre bisexual inflorescences have also been found. The arrangement of the male flowers further confirms the placing of the New Zealand species in Hydatella rather than in Trithuria, where the infloresccnccs are regularly bisexual.