Evolutionary history of plants and radially symmetrical, is an integumented megasporangium surrounded by a cupule. The megasporangium bears an unopened distal extension protruding above the multilobed integument. It is suspected that the extension was involved in anemophilous pollination. "Runcaria" sheds new light on the sequence of character acquisition leading to the seed. "Runcaria" has all of the qualities of seed plants except for a solid seed coat and a system to guide the pollen to the ovule. The first spermatophytes (literally: "seed plants") – that is, the first plants to bear true seeds – are called pteridosperms: literally, "seed ferns", so called because their
The Secret Life of Plants Italy during the Second World War The book includes summaries of the life and work of 20th century scientists Jagadish Chandra Bose and Corentin Louis Kervran as well as 19th century scientist George Washington Carver. The book includes experiments on plant stimuli using a polygraph, a method which was pioneered by Cleve Backster. Parts of the book attempt to disparage science, particularly plant biology, for example by claiming science is not concerned with "what makes plants live", in order to promote its own viewpoint that plants have emotions. The authors further say the authorities are unable to accept that emotional