Which has more species, Cheiridopsis or Dietes?
Cheiridopsis: Cheiridopsis is a genus that consists of 100 flowering succulent perennial plants, native to semi-arid regions in the far west of Namibia and South Africa. Dietes:  Common names include wood iris, Fortnight lily, African iris, Japanese iris and Butterfly iris, each of which may be used differently in different regions for one or more of the six species within the genus.
Cheiridopsis