A) Angiosperms
B) Gymnosperms
C) Pteridophytes
D) Both (a) and (b)
Correct Answer: D
Solution :
Eichler (1883) divided plant kingdom into two sub-kingdoms. (i) Cryptogamae - Plants having no flowers such as algae, fungi, bryophytes and pteridophytes (ii) Phanerogamae - Plants having evident reproductive organs like flowers and seeds such as angiosperms and gymnosperms.
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