Question

What is common in Bryophyllum, Sansevieria and Lilium?

• A. All are members of family liliaceae
• B. All reproduce only sexually
• C. All reproduce through leaves vegetatively
• D. All lack heterospory

Answer 1

The correct option is C All reproduce through leaves vegetatively

Higher plants like angiosperms are capable of vegetative (asexual) as well as sexual reproduction. During sexual reproduction, two types of spores are produced -microspores and megaspores, i.e., angiosperms show heterospory. The two types of spores produce two types of gametophytes i.e., male and female gametophyte, which will ultimately produce two types of gametes- male and female. The gametes fuse to form zygote. Vegetative reproduction can be carried out by modified root, stem and leaf. Some of the important plants, that can be propagated vegetatively by leaf cuttings are African violet (Saintpaulia ionantha), Begonia spp., Bryophyllum spp., Crassula spp., Kalanchoe spp., lily (Lilium longiflorum and L. candidum), Oxalis spp., Peperomia spp., Sedum spp., snake plant (Sansevieria trifasciata), sweet potato, wax plant (Hoya carnosa). Generally, these plants have thick leaves. Jasmine or sampaguita (Jasminum sambac) and spotted dracaena (Dracaena godseffiana) have also been propagated experimentally by leaf cuttings.