In which one pair both the plants can be vegetatively propagated by leaf species?

Step-by-step solution

Bryophyllum and Kalanchoe show vegetative propagation. Where new small buds arise from the margin of the leaves and grow to a new plant when falling on the ground. Agave reproduce by aerial bulbils vegetatively. Asparagus cannot be vegetatively propagated. In Chrysanthemum, vegetative propogation occurs by root suckers or terminal cutting.