Cheiridopsis caroli-schmidtii is a species in the genus Cheiridopsis that consists of 100 flowering succulent perennial plants. Like the other members this species is native to semi-arid regions of Namibia and South Africa.
 This species grows on Granite and quartz outcrops.
Dietes grandiflora (large wild iris, fairy iris) is a rhizomatous perennial plant with long, rigid, sword-like green leaves belonging to the Iridaceae family.
 This species is common in horticulture in its native South Africa, where it is often used in public gardens, beautification of commercial premises and along roadsides.
Dietes bicolor (variously known as African iris or Fortnight lily) is a clump-forming rhizomatous perennial plant with long sword-like pale-green leaves, growing from multiple fans at the base of the clump.
 This species belongs to the Iridaceae (Iris) family.
 It can form large clumps if left undisturbed for years.
 This species is common in horticulture in its native South Africa, where it is often used in public gardens, beautification of commercial premises and along roadsides.
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 is a genus of rhizomatous plants of the family Iridaceae, first described as a genus in 1866.
 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 denticulata is a species in the "Cheiridopsis" genus that consists of 100 flowering succulent perennial plants, native to semi-arid regions of Namibia and southern Africa.

Question: Which has more species, Cheiridopsis or Dietes?
Answer: Cheiridopsis