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

Table 1

Morphological comparison of the three leaf types.

Leaf type	Leaf texture	Leaf thickness (μm)	Leaf area
			Length (mm)	Width (mm)	LW^−1
Blue S. uncinata leaves	Soft and thin	48.53 ± 3.56B	3.25 ± 0.61C	1.73 ± 0.44C	1.9
Red S. uncinata leaves	Hard and crisp	84.34 ± 4.62C	3.09 ± 0.63A	1.53 ± 0.27B	2.0
S. kraussiana leaves	Thick and soft	35.73 ± 3.05A	3.20 ± 0.32B	1.37 ± 0.34A	2.4

Note: data analysis used Duncan's method, the data of leaf thickness, and length and width = mean value ± standard deviation (n = 6); A, B, and C show the different significant differences at level in SNK test.