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 The Secret Life of Plants The Secret Life of Plants (1973) is a book by Peter Tompkins and Christopher Bird. The book documents controversial experiments that claim to reveal unusual phenomena regarding plants such as plant sentience, discovered through experimentation. It goes on to discuss philosophies and progressive farming methods based on these findings. The book was heavily criticized by scientists for promoting pseudoscientific claims. Christopher Bird was a best-selling author who also wrote "The Divining Hand: The 500-Year-Old Mystery of Dowsing". Peter Tompkins worked as a journalist, as well as a US military intelligence officer for the OSS in