Question: Which is a genus to more specie of flowering plant, Arenaria or Aucuba?

Context paragraphs:
Arenaria montana: Arenaria montana, the mountain sandwort, is a species of flowering plant in the family Caryophyllaceae, native to mountainous regions of southwestern Europe, from the Pyrenees to Portugal.  The Latin specific epithet "montana" refers to mountains or coming from mountains.

Aucuba: Aucuba is a genus of three to ten species of flowering plants, now placed in the family Garryaceae, although formerly classified in the Aucubaceae or Cornaceae.

Arenaria aculeata: Arenaria aculeata (syn.  "Eremogone aculeata") is a species of flowering plant in the pink family known by the common name prickly sandwort.  It is native to the western United States, where it grows mainly in mountainous areas, on rocky slopes and volcanic soils.

Arenaria paludicola: Arenaria paludicola is a species of flowering plant in the pink family known by the common names marsh sandwort and swamp sandwort.  The plant grows in wet areas, such as marsh and bog.

Arenaria ursina: Arenaria ursina is a species of flowering plant in the pink family known by the common name Bear Valley sandwort.

Arenaria macradenia: Arenaria macradenia is a species of flowering plant in the pink family known by the common names Mojave sandwort and desert sandwort.

Veronica arenaria: Veronica arenaria is a flowering plant species in the family Plantaginaceae.  It is native to New South Wales and Queensland Australia.

Arenaria (plant): Arenaria is a genus of flowering plants, within the family Caryophyllaceae.

Arenaria congesta: Arenaria congesta is a species of flowering plant in the pink family known by the common name ballhead sandwort.  It is native to western North America from central Canada to the American southwest.

Arenaria bryophylla: Arenaria bryophylla is a flowering plant in the sandwort ("Arenaria") genus.  It occurs in the Himalaya of China, Tibet, Nepal, Sikkim, and India.  It is the highest known flowering plant, occurring as high as 6180 m .

Supporting paragraphs: Arenaria (plant) Aucuba
Answer: Aucuba