Question

When more than two leaves arise at each node , it is called as


a. Alternate Phyllotaxy

b. Opposite Phyllotaxy

c. Parallel Venation

d. Whorled Phyllotaxy

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Answer 1

Answer:

If more than two leaves arise at a node and form a whorl, it is called Whorled, as in Alstonia(also Brassica).

Answer 2

Answer:

When more than two leaves arise at each node , it is called as d. Whorled Phyllotaxy

Explanation:

• The way leaves are arranged on a stem is called phyllotaxy. The regularity and rigorous mathematics of this is astounding.
• The way a given species' leaves are positioned on the stem is determined by a specific regulation.
• The arrangement is always symmetrical, and the placement of the leaves on the stem is never random.
• The purpose of phyllotaxy is to minimise leaf crowding and maximise photosynthesis by exposing the leaves to the sun
• . The verticillate type is another name for whorled phyllotaxy. In contrast to Alstonia scholaris ( with 5 leaves whorl ), Nerium odorum exhibits three leaves creating a whorl at each node. These are verticillate type examples.