Gymnosperm the genome of "Picea abies" in 2013. Gymnosperm The gymnosperms , also known as Acrogymnospermae, are a group of seed-producing plants that includes conifers, cycads, "Ginkgo", and gnetophytes. The term "gymnosperm" comes from the Greek composite word "γυμνόσπερμος" (γυμνός gymnos, "naked" and σπέρμα sperma, "seed"), meaning "naked seeds". The name is based on the unenclosed condition of their seeds (called ovules in their unfertilized state). The non-encased condition of their seeds stands in contrast to the seeds and ovules of flowering plants (angiosperms), which are enclosed within an ovary. Gymnosperm seeds develop either on the surface of scales or leaves,
Seeds of Change (book) Made Men Rich" covering timber, wine, rubber, and tobacco. David E. Allen writing in "Medical History" described it as "a thoughtful, thought-provoking, extremely readable work" It has been recommended reading and studied at universities and has been reviewed by the "Library Journal", "The American Historical Review", and "The Atlantic". Seeds of Change (book) Seeds of Change: Five Plants That Transformed Mankind is a 1985 book by Henry Hobhouse which explains how the history of the world since Columbus linked America to Europe and has been changed by five plants. It describes how mankind's discovery, usage and trade of sugar, tea,