Which genus has more species, Fouquieria or Clematis?
Clematis: is a genus of about 300 species within the buttercup family Ranunculaceae. Clematis:  Their garden hybrids have been popular among gardeners, beginning with "Clematis" × "jackmanii", a garden standby since 1862; more hybrid cultivars are being produced constantly. Clematis:  Most species are known as clematis in English, while some are also known as traveller's joy, a name invented for the sole British native, "C. vitalba", by the herbalist John Gerard; virgin's bower for "C. viticella"; old man's beard, applied to several with prominent seedheads; leather flower for those with fleshy petals; or vase vine for the North American "Clematis viorna".
i don't know