Question: Between Purshia and Juniper, which genus has more species?

Context paragraphs:
Juniperus communis: Juniperus communis, the common juniper, is a species of conifer in the genus "Juniperus", in the family Cupressaceae.  It has the largest geographical range of any woody plant, with a circumpolar distribution throughout the cool temperate Northern Hemisphere from the Arctic south in mountains to around 30°N latitude in North America, Europe and Asia.  Relict populations can be found in the Atlas Mountains of Africa.

Taxandria juniperina: Taxandria juniperina commonly known as wattie, native cedar, Warren River cedar or juniper myrtle is a species of tree that grows in the south west corner of Western Australia.  This plant was previously classified as "Agonis juniperina" but is now part of the "Taxandria" genus.

Jewel scarab: The Ruteline genus Chrysina, or jewel scarabs (not to be confused with jewel beetles which are a different family), is a large genus of brightly colored, often metallic iridescent species, ranging from the southwestern edge of the United States as far south as Ecuador.  The genus includes all the species formerly known as "Plusiotis".  They are typically between 15-35mm in length, and are nocturnal in habits, coming readily to lights.  The larvae live in rotting logs, while the adults commonly feed on foliage; they tend to be found in pine, juniper, or pine-oak forests, most commonly between 1000-3000m elevation.  They are most diverse in countries such as Honduras, where as many as 15 species can be found in a single location.  There are only 4 species which occur in the United States (see taxobox).

Abyssinian catbird: The Abyssinian catbird or juniper babbler ("Parophasma galinieri") is a species of bird in the family Sylviidae.  It is monotypic within the genus Parophasma.  It is endemic to Ethiopia.  The catbird's natural habitat is subtropical or tropical dry forests.

Purshia: Purshia (bitterbrush or cliff-rose) is a small genus of 5-8 species of flowering plants in the family Rosaceae, native to western North America, where they grow in dry climates from southeast British Columbia in Canada south throughout the western United States to northern Mexico.  The classification of "Purshia" within the Rosaceae has been unclear.  The genus was originally placed in the subfamily Rosoideae, but is now placed in subfamily Dryadoideae.

Juniper: Junipers are coniferous plants in the genus Juniperus of the cypress family Cupressaceae.  Depending on taxonomic viewpoint, between 50 and 67 species of juniper are widely distributed throughout the Northern Hemisphere, from the Arctic, south to tropical Africa, from Ziarat, Pakistan east to eastern Tibet in the Old World, and in the mountains of Central America.  The highest-known Juniper forest occurs at an altitude of 16000 ft in south-eastern Tibet and the northern Himalayas, creating one of the highest tree-lines on earth.

Oligographa: Oligographa is a genus of moths in the family Sphingidae, containing one species Oligographa juniperi, which is known from South Africa and Mozambique.  The species is commonly known as the juniper hawk moth.

Supporting paragraphs: Purshia Juniper
Answer: Juniper