Evolutionary history of plants seed model is shared by basically all gymnosperms (literally: "naked seeds"), most of which encase their seeds in a woody cone or fleshy aril (the yew, for example), but none of which fully enclose their seeds. The angiosperms ("vessel seeds") are the only group to fully enclose the seed, in a carpel. Fully enclosed seeds opened up a new pathway for plants to follow: that of seed dormancy. The embryo, completely isolated from the external atmosphere and hence protected from desiccation, could survive some years of drought before germinating. Gymnosperm seeds from the Late Carboniferous have been found to contain
McKenzie Seeds McKenzie Seeds McKenzie Seeds is a seed packaging company which has over 200 employees and is based in Brandon, Manitoba. It was established in 1896 by Dr. Albert Edward McKenzie, and is now Canada's foremost seed supplier with 60% of the market. Its retail division sells seed under the brands McKenzie, Thompson & Morgan, Gusto Italia, and Pike, as well as other gardening products and accessories. Through a direct mail division it operates the brands McFayden and McConnell catalogues. In 1945, 90% of the company shares passed from its founder to the Manitoba Government to benefit Brandon College, the forerunner