Phenetics provides information on similarity regardless of descent. Evolutionary classification maximizes information on evolution by combining information on descent and modification, but it relaxes ...

The evolution, dissemination and classification of the coconut can be considered as a logical sequence. First came the natural evolution and dissemination by floating of a variety with large, long, ...

THE detailed classification of the Tunicata, and especially of the so-called “Compound Ascidians,” has usually been found a matter of special difficulty by systematists, and each successive ...