Question: Which genus has more species, Cyclamen or Ostrowskia?
Context: Cyclamen is a genus of 23 species of perennial flowering plants in the family Primulaceae. Cyclamen repandum, the spring sowbread, is a species of flowering plant of the family Primulaceae, native to southern Europe and some Mediterranean islands.  It is the most widespread of a group of cyclamens (genus "Cyclamen" subgenus "Psilanthum") with wide, heart-shaped leaves, often coarsely toothed or lobed, and late spring-blooming flowers with long, slender petals. Cyclamen purpurascens (Alpine, European or purple cyclamen) is a species of flowering plant in the genus "Cyclamen" of the family Primulaceae, native to central Europe, northern Italy, and Slovenia.  It is a tuberous perennial with (usually) variegated leaves, and deep pink flowers in summer. Cyclamen hederifolium (ivy-leaved cyclamen or sowbread) is a species of flowering plant in the genus "Cyclamen", of the family Primulaceae.  It is the most widespread cyclamen species, the most widely cultivated after the florist's cyclamen ("Cyclamen persicum"), and the most hardy and vigorous in oceanic climates.  It is native to woodland, shrubland, and rocky areas in the Mediterranean region from southern France to western Turkey and on Mediterranean islands, and naturalized farther north in Europe and in the Pacific Northwest. Cyclamen mirabile is a perennial growing from a tuber, native to Turkish pine woodland and maquis in southwestern Turkey.  It belongs to the "Cyclamen cilicium" group of the "Cyclamen" genus (subgenus "Gyrophoebe", series "Cilicium").  The species was identified and named in 1906. Cyclamen pseudibericum (incorrectly spelled "pseudoibericum"), the false Iberian cyclamen, is a species of flowering plant in the genus "Cyclamen" of the family Primulaceae, native to the Amanus or Nur and Anti-Taurus Mountains in southern Turkey.  It is an herbaceous, tuberous perennial growing to 12 cm .  It is similar to "Cyclamen coum", but with longer petals. Cyclamen rhodium (also called "Cyclamen peloponnesiacum"; once included in "Cyclamen repandum") is a species of flowering plant in genus "Cyclamen" of the family Primulaceae, native to the Peloponnese, Rhodes, and southwestern Kos.  It is a tuberous perennial growing to 10 cm , with mottled, heart-shaped leaves and pink flowers, darker carmine pink at the base, appearing in spring.  Like all cyclamens, the flowers consist of five upswept, reflexed petals. Cyclamen ( or ) is a genus of 23 species of perennial flowering plants in the family Primulaceae.  Cyclamen species are native to Europe and the Mediterranean Basin east to Iran, with one species in Somalia.  They grow from tubers and are valued for their flowers with upswept petals and variably patterned leaves. Cyclamen coum, the eastern sowbread, is a species of flowering plant in the genus "Cyclamen" (subgenus "Gyrophoebe" series "Pubipedia").  It is a tuberous herbaceous perennial, growing to 5 - , with rounded heart-shaped leaves and pink shell-shaped flowers with darker coloration at the base.  It is valued in horticulture as groundcover, and for the flowers which bloom in winter and early spring. Ostrowskia is a genus of plants in the Campanulaceae.  There is only one known species, Ostrowskia magnifica, native to the Central Asian nations of Afghanistan, Kyrgyzstan and Tajikistan.
Answer: Cyclamen