Which genus of flowering plant has more species Bulbophyllum or Bismarckia?
Bulbophyllum: Bulbophyllum is the largest genus in the orchid family Orchidaceae. Bulbophyllum:  With more than 2,000 species, it is also one of the largest genera of flowering plants, exceeded only by "Astragalus". Bismarckia:  The genus is named for the first chancellor of the German Empire Otto von Bismarck and the epithet for its only species, Bismarckia nobilis, comes from Latin for 'noble'.
Bulbophyllum