What are the three forms of compound flowers?

What are the three forms of compound flowers?

• A. Raceme, Spike, and Corymb
• B. Umbel, Panicle, and Spike
• C. Spike, Catkin, and Raceme
• D. Corymb, Umbel, and Capitulum

Answer: (A)

The concept being tested is how multiple flowers are arranged on a single flowering stalk, or inflorescence. A spike has flowers attached directly to the main axis with no stalks. A raceme places each flower on a short stalk (pedicel) along the axis. A corymb also involves multiple flowers on a single axis, but the pedicels vary in length so the blossoms form a level, often flat-topped cluster. These three are classic forms of compound inflorescences because they group many flowers on one flowering stalk, unlike patterns such as umbels or capitula which follow different arrangements. So the combination of spike, raceme, and corymb correctly identifies the three forms in question.

The concept being tested is how multiple flowers are arranged on a single flowering stalk, or inflorescence. A spike has flowers attached directly to the main axis with no stalks. A raceme places each flower on a short stalk (pedicel) along the axis. A corymb also involves multiple flowers on a single axis, but the pedicels vary in length so the blossoms form a level, often flat-topped cluster. These three are classic forms of compound inflorescences because they group many flowers on one flowering stalk, unlike patterns such as umbels or capitula which follow different arrangements. So the combination of spike, raceme, and corymb correctly identifies the three forms in question.