Question: Which genus has more species Colletia or Discaria?

Context paragraphs:
Colletia: Colletia is a genus of flowering plants in the family Rhamnaceae, with 15 to 17 species of spiny shrubs. All species of this genus are native to southern South America.  They are non-legume nitrogen fixers.

Discaria: Discaria is a genus of about 12 species of flowering plants in the family Rhamnaceae, native to temperate regions of the Southern Hemisphere, in Australia, New Zealand and South America.

Supporting paragraphs: Colletia Discaria
Answer: Colletia