Yucca" × "schottii is a plant species in the genus "Yucca", native to southern Arizona, southwestern New Mexico, and the northern parts of Sonora and Chihuahua.
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 The common names are Schott's yucca, hoary yucca, and mountain yucca.
 The "×" in the name indicates that this is a nothospecies, regarded as being a natural hybrid between two other species.
 In this case, "Yucca" × "schottii" is believed to have originated as a hybrid between "Y. baccata" and "Y. madrensis".
 "Yucca" × "schottii" is firmly established and does reproduce freely in the wild.
Hesperoyucca whipplei (syn.
 "Yucca whipplei" ) (chaparral yucca, our Lord's candle, Spanish bayonet, Quixote yucca or foothill yucca is a species of flowering plant closely related to, and formerly usually included in, the genus "Yucca".
 It is native to southern California, United States and Baja California, Mexico, where it occurs mainly in chaparral, coastal sage scrub, and oak woodland plant communities at altitudes of 0–2500 m.
Tegeticula is a genus of moths of the Prodoxidae family, one of three genera known as yucca moths; they are mutualistic pollinators of various "Yucca" species.
Dipteryx is a genus containing nine species of shrubs and trees.
 It belongs to the "papilionoid" subfamily – Faboideae – of the legume family (Fabaceae).
 This genus is native to South and Central America and the Caribbean.
 Formerly, the related genus "Taralea" was included in "Dipteryx".
Yucca brevifolia is a plant species belonging to the genus "Yucca".
 It is tree-like in habit, which is reflected in its common names: Joshua tree, yucca palm, tree yucca, and palm tree yucca.
Yucca is a genus of perennial shrubs and trees in the family Asparagaceae, subfamily Agavoideae.
 Its 40-50 species are notable for their rosettes of evergreen, tough, sword-shaped leaves and large terminal panicles of white or whitish flowers.
 They are native to the hot and dry (arid) parts of the Americas and the Caribbean.
 Early reports of the species were confused with the cassava ("Manihot esculenta").
 Consequently, Linnaeus mistakenly derived the generic name from the Taíno word for the latter, "yuca" (spelled with a single "c").
 It is commonly found growing in rural graveyards and when in bloom the cluster of (usually pale) flowers on a thin stalk appear as floating apparitions.
Yucca lacandonica is a plant species with the common name "tropical yucca."
 It is native to Belize and to southern Mexico, the states of Chiapas, Veracruz, Tabasco, Quintana Roo, Campeche, and Yucatán.
 It is unique in the genus, the only epiphytic species in the group, although it has been reported to grow terrestrially as well.
Yucca rostrata also called beaked yucca, is a tree-like plant belonging to the genus "Yucca".
 The species is native to Texas, Chihuahua and Coahuila.
Yucca declinata is a species of the genus "Yucca", family Asparagaceae.
 It is known only from the vicinity of Bacanora, in the Mexican state of Sonora.
 Botanist Howard Scott Gentry first collected the species and mentioned it in print, noting the differences between this population and the closely related species "Y. grandiflora" H. S. Gentry and "Y. arizonica" McKelvey (sic, = "Yucca baccata" var.
 "brevifolia" L. D. Benson & R. A. Darrow).
 He did not, however, describe it as a new species.
 Later examination of his descriptions and his material led to the recognition of this as a new species.
Yucca aloifolia is the type species for the genus Yucca.
 Common names include aloe yucca, dagger plant, and Spanish bayonet.
 It grows in sandy soils, especially on sand dunes along the coast.
 "Yucca aloifolia" is native to the Atlantic and Gulf Coasts of the United States from southern Virginia south to Florida and west to the Texas Gulf Coast, to Mexico along the Yucatán coast, and to Bermuda, and parts of the Caribbean.
 Normally Yucca aloifolia is grown in USDA zones 8 through 11.
 Yucca aloifolia is a popular landscape plant in beach areas along the lower East Coast from Virginia to Florida.

Question: Which genus has more species, Yucca or Dipteryx?
Answer: Yucca