Iris Cohen wrote:

Both male & female plants must be present for the
long-lasting fruit to occur,

Are you sure? I thought in the Araceae both male & female flowers occur on the
same spadix.

You are correct - aroids can carry perfect flowers on a hermaphrodite infloresence
or separate male and female flowers in zones on a monoecious inflorescence. At any
rate, both sexes are contained on the same spadix. Big ariseama collector here -
all of mine produce copius berries.

pam - gardengal