A special lecture on "Biodiversity-An Exploration of the Diversity" at M. Kumarasamy College of Education, Karur-Dt. (10.03.2018).

An endangered species is a native species that faces a significant risk of extinction. Such species may be declining in number due to threats such as habitat destruction, climate change and pressure from invasive species. The flora of India is one of the richest in the world due to the country's wide range of climate, topology, and environment. There are over 15,000 species of flowering plants in India which account for 6% of all plant species in the world. Many plant species are being destroyed. Roughly 1/4 of all plant species in the world are at risk of being endangered or going extinct. The combination of global warming and habitat destruction are the sole reason for the disappearance of many plants. The following plants are very threatened in Tamilnadu: Acacia planifrons (Umbrella tree), Abutilon indicum, (Indian mallow), Chlorophytum tuberosum, (Musli) and Chlorophytum malabaricum (Malabar lily).