Step 1: Understanding viviparous germination.
Viviparous germination refers to the condition in which seeds germinate while still attached to the parent plant. Step 2: Habitat condition.
This type of germination is an adaptation to saline and marshy environments where seeds cannot survive if they fall on soil. Step 3: Plant group involved.
Halophytes such as mangroves show vivipary to ensure survival in waterlogged and saline conditions. Step 4: Conclusion.
Therefore, viviparous germination is seen in halophytes.