FIG. 4.
Relationship between elevations of collection sites and RFLP groups. Data were compiled for each of the 19 sites (RFLP group II, 1 site; RFLP group III, 7 sites; RFLP group IV, 14 sites); 3 sites had representatives belonging to two groups. The data for samples from each RFLP group were averaged, and standard errors were calculated.
