- properly to view all lines, and the legend is plotted by default. For
- more flexible settings of line drawings, it may be better to combine
+ properly to view all lines, and the legend is plotted by default. The
+ plot will certainly make sense if all trees have their
+ most-distant-from-the-root tips contemporaneous (i.e., trees with only
+ extinct lineages will not be represented properly). For more flexible
+ settings of line drawings, it may be better to combine