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
Pitcher Plants of the Old World M. Christenhusz and Michael F. Fay wrote: This is to date the only publication dealing with the genus "Nepenthes" throughout its geographical range. He [McPherson] humbly refers the reader to other taxonomic works, but these are all regional treatments. The level of information provided on all the species of "Nepenthes" is outstanding and has no precedent. Pitcher Plants of the Old World Pitcher Plants of the Old World is a two-volume monograph by Stewart McPherson on the pitcher plants of the genera "Nepenthes" and "Cephalotus". It was published in May 2009 by Redfern Natural History Productions and covers all species