Drier climate in mid. Tect. Thorn scrub and desert Drifting of India flora from a warm temp through Tertiary. Simulated Podocarps & not adapted things became extinct Flora of India thus improvised Africa - Change in climate has impoverished flora Palms, Orchids, Bombax Many taxa in it haven with Australia - Elevation of the E. Af. rift zone increased height of comb. and caused drying. Also development of Benguela Current.