Chatgpt to the rescue:

In flowering plants, the conditions you described pertain to the arrangement of male and female reproductive structures. Here are the terms for each scenario, including magnolias:

1. **Dioecious**: When a plant species has individual plants that produce only male flowers or only female flowers. Examples include holly and kiwifruit.

2. **Monoecious**: When a single plant produces both male and female flowers. Examples include corn, squash, and magnolias. (Note: Most magnolias are actually perfect-flowered, but there are a few species with separate male and female flowers on the same plant, fitting the monoecious category.)

3. **Perfect flowers (or hermaphroditic)**: When a single flower has both male and female reproductive structures. Most magnolias, roses, and lilies fall into this category.

4. **Polygamous**: When a single plant has a mix of male, female, and perfect flowers. Examples include some species of maple and avocado.

These terms help in understanding the reproductive strategies and diversity among flowering plants.