Question: Which plant has more species, Achimenes or Bearberry?

Context paragraphs:
Achimenes: Achimenes is a genus of about 25 species of tropical and subtropical rhizomatous perennial herbs in the flowering plant family Gesneriaceae.  They have a multitude of common names such as magic flowers, widow's tears, Cupid's bower, or hot water plant.

Arctostaphylos rubra: Arctostaphylos rubra is a species of flowering plant in the heath family and the genus "Arctostaphylos", the manzanitas and bearberries.  Common names include red fruit bearberry, alpine bearberry, arctic bearberry, red manzanita, and ravenberry.  It is native to Eurasia and northern North America from Alaska through most of Canada to Greenland.  There is also one population in the contiguous United States, located in the Absaroka Mountains of Wyoming.

Cotoneaster dammeri: Cotoneaster dammeri, the bearberry cotoneaster, is a species of flowering plant in the genus "Cotoneaster", belonging to the Rosaceae family, native to central and southern China (Gansu, Guizhou, Hubei, Sichuan, Tibet and Yunnan) and naturalized in Europe.

Garrya wrightii: Garrya wrightii is a species of flowering plant in the family Garryaceae known by the common names Wright's silktassel, quinine-bush, coffee berry, bearberry, feverbush, and grayleaf dogwood.

Bearberry: Bearberries are three species of dwarf shrubs in the genus "Arctostaphylos".  Unlike the other species of "Arctostaphylos" (see manzanita), they are adapted to Arctic and Subarctic climates, and have a circumpolar distribution in northern North America, Asia and Europe, one with a small highly disjunctive population in Central America.

Arctostaphylos uva-ursi: Arctostaphylos uva-ursi is a plant species of the genus "Arctostaphylos" (manzanita).  Its common names include kinnikinnick and pinemat manzanita, and it is one of several related species referred to as bearberry.

Achimenes grandiflora: Achimenes grandiflora is a plant species in the genus "Achimenes", family Gesneriaceae.  It is native to Mexico and Central America, growing in mountainous regions from Chihuahua to Nicaragua.  It is cultivated as an ornamental in other places because of its showy purple flowers.

Supporting paragraphs: Achimenes Bearberry
Answer: Achimenes