Question: Which genus of plants contains more specieis, Gaura or Corokia?
Context: Hygrophila, commonly known as swampweeds, is a genus of flowering plants in the acanthus family, Acanthaceae.  There are about 80 to 100 species, of which many are aquatic plants.  The genus is distributed across the tropical and subtropical world.  It is one of only two genera in its family that contains aquatic plants, the other being "Justicia".  The genus is treated in the tribe "Hygrophileae", which is noted as being in need of revision at the genus level, meaning the current taxonomic boundaries of "Hygrophila" are likely to change in the future. Corokia is a genus in the Argophyllaceae family comprising about ten species native to New Zealand and one native to Australia.  "Corokia" species are shrubs or small trees with zigzagging (divaricating) branches.  In fact, "Corokia cotoneaster" is commonly known as "wire-netting bush".  The stems of the shrubs are dark when mature, covered with downy or silky hairs (tomentum) when young.  In spring, they produce clusters of small, star shaped yellow blossoms.  Berries are red or yellow.  The shrubs prefer forests and rocky areas, sun or light shade, reasonably well drained soil, and moderate watering. Zeltnera is a genus of flowering plants in the gentian family.  It was erected in 2004 when the genus "Centaurium" (the centauries) was split.  Genetic analysis revealed that "Centaurium" was polyphyletic, made up of plants that could be grouped into four clades. Each became a genus.  "Centaurium" remained, but it is now limited to the Eurasian species.  The Mexican species now belong to genus "Gyrandra", and the Mediterranean and Australian plants are in genus "Schenkia".  The new name "Zeltnera" was given to this genus, which contains most of the North American centauries.  There are about 25 species. Gaura is a genus of flowering plants in the family Onagraceae, native to North America.  The genus includes many species known commonly as beeblossoms.  Recent genetic research has shown that the genus is paraphyletic unless the monotypic genus "Stenosiphon" is included within "Gaura", increasing the number of species in the genus to 22. Rubieae is a tribe of flowering plants in the Rubiaceae family and contains 969 species in 14 genera.  The genus "Galium" is responsible for more than two thirds of the species in the tribe.  The second largest genus is "Asperula", which contains about 200 species.  Unlike the rest of the Rubiaceae family, the tribe contains predominantly perennial and annual herbs with pseudowhorls of leaves and leaflike stipules and is centered in temperate and tropical-mountain regions. Utricularia" sect.  "Setiscapella is a section in the genus "Utricularia" that contains small or medium-sized terrestrial or subaquatic species.  Most plants in this section are endemic to Central and South America with the exceptions of "Utricularia stanfieldii", which is endemic to Africa, and "Utricularia subulata" which is almost pantropical.  It was first described by John Hendley Barnhart in 1916 at the rank of genus.  In 1973, Sadashi Komiya reduced the genus to a subgenus of the genus "Utricularia".  In his 1986 monograph on the genus, Peter Taylor reorganized the genus and reduced this to the rank of section. Jatropha is a genus of flowering plants in the spurge family, Euphorbiaceae.  The name is derived from the Greek words ἰατρός ("iatros"), meaning "physician", and τροφή ("trophe"), meaning "nutrition", hence the common name physic nut.  Another common name is nettlespurge.  It contains approximately 170 species of succulent plants, shrubs and trees (some are deciduous, like "Jatropha curcas").  Most of these are native to the Americas, with 66 species found in the Old World.  Plants produce separate male and female flowers.  As with many members of the family Euphorbiaceae, "Jatropha" contains compounds that are highly toxic.  Jatropha species have traditionally been used in basketmaking, tanning and dye production.  In the 2000s, one species, "Jatropha curcas", generated interest as an oil crop for biodiesel production. Ancistrocarphus is a genus of flowering plants in the aster family.  It contains two known species, both native to western North America.  These plants are often treated as members of genus "Stylocline", but they are not as closely related to "Stylocline" species as they are to plants of other genera, especially "Hesperevax". The genus Heliamphora ( or ; Greek: "helos" "marsh" and "amphoreus" "amphora") contains 23 species of pitcher plants endemic to South America.  The species are collectively known as sun pitchers, based on the mistaken notion that the "heli" of "Heliamphora" is from the Greek "helios", meaning "sun".  In fact, the name derives from "helos", meaning marsh, so a more accurate translation of their scientific name would be marsh pitcher plants.  Species in the genus "Heliamphora" are carnivorous plants that consist of a modified leaf form that is fused into a tubular shape.  They have evolved mechanisms to attract, trap, and kill insects; and control the amount of water in the pitcher.  At least one species ("H. tatei") produces its own proteolytic enzymes that allows it to digest its prey without the help of symbiotic bacteria. Tripterocalyx is a small genus of flowering plants in the four o'clock family.  It contains four species formerly included in the closely related genus "Abronia", the sand-verbenas.  These plants are native to North America, especially the dry desert southwest of the United States.  They bloom in heads of several colorful trumpet-shaped flowers.  Sandpuffs is a common name for plants in this genus.
Answer: Gaura