Question: Which plant has more species in their genus, Cuminum or Calathea?

Context paragraphs:
Calathea picturata: Calathea picturata is a species of plant in the family Marantaceae, native to northwest Brazil.  It is a clump-forming evergreen perennial growing to 35 - .  The leaves are dark green above, purple below, marked heavily with silver along the veins and midriff.  It is tender, with a minimum temperature of 16 C required, and in temperate areas is cultivated indoors as a houseplant.

Calathea: Calathea is a genus of plants belonging to the family Marantaceae.  There are several dozen species in this genus.  Native to the tropical Americas, many of the species are popular as pot plants due to their decorative leaves and, in some species, colorful inflorescences.  They are commonly called calatheas or (like their relatives) prayer plants.  There are several cultivars, such as 'Silver Plate'.

Calathea makoyana: Calathea makoyana (peacock plant, cathedral windows) is a species of plant belonging to the genus "Calathea" in the family Marantaceae, native to eastern Brazil.

Calathea zebrina: Calathea zebrina (zebra plant) is a species of plant in the family Marantaceae, native to southeastern Brazil.  It is an evergreen perennial growing to 1 m .  The long stalks to 30 cm carry elliptical leaves 45 cm or more long.  The leaves are dark green above, dark red below, the spines, veins and margins etched in lime green.  It is tender, with a minimum temperature of 16 C required, and in temperate areas is cultivated indoors as a houseplant.

Calathea roseopicta: Calathea roseopicta (rose-painted calathea) is a species of plant in the family Marantaceae, native to northwest Brazil.  It is a clump-forming evergreen perennial growing to 50 cm .  The large rounded leaves are dark green above, red below, marked heavily with cream or pink stripes "painted" along the veins and midriff, with feathered margins.  It is tender, with a minimum temperature of 16 C required, and in temperate areas is cultivated indoors as a houseplant.

Cuminum: Cuminum is a genus of four flowering plants in the family Apiaceae.  The most significant is "Cuminum cyminum", source for the cumin seeds that are a popular spice.

Calathea lancifolia: Calathea lancifolia (rattlesnake plant) is a species of flowering plant in the Marantaceae family, native to Brazil.  Requiring a minimum temperature of 16 C , it is commonly used as a houseplant in temperate regions.

Bunium persicum: Bunium persicum is a plant species in the family Apiaceae that was previously included in genus "Carum".  It is related to cumin ("Cuminum cyminum").

Calathea ornata: Calathea ornata (also called variously striped, pin-stripe, or pin-stripe calathea) is a species of perennial plant in the family known as the prayer plants.  It is native to South America (Colombia, Venezuela), and is cultivated in temperate countries as a houseplant.  It is affected by spider mites.

Calathea louisae: Calathea louisae is a species of plant belonging to the genus of "Calathea" native to Brazil but cultivated in other places as an ornamental.

Supporting paragraphs: Cuminum Calathea
Answer: There are several dozen species in this genus.