Which genus has more species, Pseudolarix or Epithelantha?
Pseudolarix:  The sole species, Pseudolarix amabilis, is commonly known as the golden larch, though it is not a true larch ("Larix"), being more closely related to "Keteleeria", "Abies" and "Cedrus". Epithelantha:  "Epithelantha" has two species, "Epithelantha micromeris" and "Epithelantha bokei".
Epithelantha