Canonical plot of points and means from linear discriminant analysis of all species by all characters with groups defined as: m P. mephiticum, v P. verdiense, p P. pauperitense, ●P. megalanthum var. megalanthum, + P. megalanthum var. retrorsum. Inner circles by group are the 95% confidence region for containing the true overall mean of the group; the outer circles by group are the normal 50% contours, the normal ellipse region that contains 50% of the population for each group. Rays show the coordinate directions in canonical space.