Which flower belongs to a smaller family, Psilotum or Aphyllanthes?
Psilotum:  It is one of two genera in the family Psilotaceae, the other being "Tmesipteris". Aphyllanthes: Aphyllanthes is a genus of flowering plants with only one species, Aphyllanthes monspeliensis, endemic to the western Mediterranean region. Aphyllanthes:  It is the only genus in the Aphyllanthoideae, a subfamily of the family Asparagaceae.
Aphyllanthes