In an earlier essay, some of the now extinct species of animals were presented. Their characteristics were described as best as the evolutionary biologists can presently determine, and various theories were put forth as to the reasons they became extinct. It is now time to examine some of the plants on which those biologists have done research. Once again, we are not talking about old maid Sunday School teachers, even though many of them probably have the petrified flowers of a futile romance pressed between the pages of their hymnals. – – – PREHISTORIC CANNIBUS There is much debate about…