Question

Study the given figures and identify the kind of phyllotaxy.

	A	B	C
a	Alternate	Opposite superposed	Opposite decussate
b	Alternate	Opposite decussate	Opposite superposed
c	Opposite decussate	Alternate	Whorled
d	Opposite decussate	Whorled	Alternate

• A. a
• B. b
• C. c
• D. d

Answer 1

Answer: (B)

Figure A represents alternate phyllotaxy-In this, one leaf is borne on the node and the leaves of the adjacent nodes roughly lie towards the opposite side.
Figure B represents opposite decussate phyllotaxy - In this, two leaves are borne on the opposite sides of a single node at right angles so that four rows of leaves are formed on the stem.
Figure C represents opposite superposed phyllotaxy In this, opposite leaves of two successive nodes lie in the same plane in superposed position.