Fig. 2 Boxplots of variation in A A six morphological characters. The data shown refer to the mid-range 100 12 values; the minimum values show)) a similar pattern. The left three cm mm 10 ( 80 boxes refer to sect . Phacocystis , (height 8 whereas the three on the right 60 width refer to the Vesicariae alliance . N 6 and M are the Northern and Plant 40 Leaf Mixed clades , respectively . S 4 refers to the Southern grade that 20 was not considered in statistical 2 calculations. Pairs with the same letters above boxes are NMSNMS NMSNMS significantly different (Tukey Phacocystis Vesicariae Phacocystis Vesicariae HSD test, p<0.05)