Question: Which is a  a genus of flowering plants, Malcolmia or Libocedrus?
Sentence (from "Magnolia virginiana"): It was the first magnolia to be scientifically described under modern rules of botanical nomenclature, and is the type species of the genus "Magnolia"; as "Magnolia" is also the type genus of all flowering plants (magnoliophytes), this species in a sense typifies all flowering plants.
Relevant evidence: No