Which has more species, Evolvulus or Centradenia?
Evolvulus Evolvulus is a genus of flowering plants in the Convolvulaceae, the morning glory family. They are known generally as dwarf morning glories. Most all are native to the Americas. There are about 100 species.
Paranautilus Paranautilus is a genus of the Nautiloid family Liroceratidae with a very involute, moderately globular, smooth shell. The venter, at the outer rim, is arched, grading into broadly convex flanks. The dorsom, on the inner rim, is deeply impressed. Septa a close spaced, with slightly sinuous sutures. A member of the Clydonautilaceae, "Paranautilus" lived during the Middle and Late Triassic (Anisian - Norian) in what is now North America, Europe, and south Asia. Contemporary Liroceratids include "Indonautilus" and "Sibyllonautilus".