Anatomical and Biochemical Traits Related to Blue Leaf Coloration of Selaginella uncinata

Table 3

Leaf pH values for the three leaf types.

Leaf type	pH
Blue S. uncinata leaves	4.63 ± 0.03B
Red S. uncinata leaves	4.55 ± 0.01A
S. kraussiana leaves	4.52 ± 0.01A

Note: pH values are means ± standard deviation (n = 3); A and B show the different significant differences at level in SNK test.