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
Flowering Plants of Africa (1921-1939), Edwin Percy Phillips (1940-1944), Robert Allen Dyer (1945-1964) and L. E. W. Codd. Flowering Plants of Africa Flowering Plants of Africa is a series of illustrated botanical magazines akin to "Curtis's Botanical Magazine", initiated as Flowering Plants of South Africa by I. B. Pole-Evans in 1920. It is now published by the South African National Biodiversity Institute (SANBI) in Pretoria. The magazine depicts and describes flowering plants from Africa and its neighbouring islands. The first volumes were printed in England by L. Reeve & Co. These first illustrations were done in black and white by lithography, zinc plates later