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

Figure 1

Appearance of the three leaf types. (a) Adaxial sides of blue Selaginella uncinata leaves; (b) abaxial sides of blue S. uncinata leaves; (c) adaxial sides of red S. uncinata leaves; (d) abaxial sides of red S. uncinata leaves; (e) adaxial sides of S. kraussiana leaves; and (f) abaxial sides of S. kraussiana.

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