Question: What is a genus of more species, Cestrum or Bauhinia?
Related documents: [0]  [DOC] Bauhinia is a genus of more than 500 species of flowering plants in the subfamily Cercidoideae of the large flowering plant family Fabaceae, with a pantropical distribution. The genus was named after the Bauhin brothers, Swiss-French botanists. [END] 
[1]  [DOC] Cestrum is a genus of - depending on authority - 150-250 species of flowering plants in the family Solanaceae. They are native to warm temperate to tropical regions of the Americas, from the southernmost United States (Florida, Texas: day-blooming cestrum, "C. diurnum") south to the Bío-Bío Region in central Chile (green cestrum, "C. parqui"). They are colloquially known as cestrums or jessamines (from "jasmine", due to their fragrant flowers). [END] 
Answer: 
Bauhinia
Bauhinia