First, let me apologize for the "roughness" of the below scans. It became nearly impossible scan our old notes from the typewriter days. In the end, we decided to just put the scans in a graphics format, and not try to "OCR" them.
Opinions differ radically in every field, so it's no wonder that botanists do not always agree on the systematic arrangement of plant families. The list which follows is an attempt to name and arrange the families In a logical order for checking purposes.
The list should help In giving an orderly picture of the entire plant kingdom. If you check each family here as you learns to recognize It, he will have a chart showing significant progress. An approximate estimate of the number of known species Is given for some of the groups In parentheses following the group name.