What kind of phyllotaxy was examined in the Guava plant?

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Accepted Answer

Step-by-step explanation:

1. Definition: In _opposite_ phyllotaxy two leaves arise at each node, i.e. $2$ leaves per node, commonly arranged in decussate pairs (successive pairs at $90^\circ$).
2. Observation: Guava (Psidium guajava) bears simple leaves arranged in opposite pairs (decussate) on the stem.
3. Conclusion: The described arrangement matches option (4) Opposite.

FINAL_ANSWER: d

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