Which living things have phloem and xylem?
Xylem Xylem Xylem is one of the two types of transport tissue in vascular plants, phloem being the other. The basic function of xylem is to transport water from roots to stems and leaves, but it also transports nutrients. The word "xylem" is derived from the Greek word ("xylon"), meaning "wood"; the best-known xylem tissue is wood, though it is found throughout the plant. The term was introduced by Carl Nägeli in 1858. The most distinctive xylem cells are the long tracheary elements that transport water. Tracheids and vessel elements are distinguished by their shape; vessel elements are shorter, and are
Phloem some other families (Amaranthaceae, Nyctaginaceae, Salvadoraceae), the cambium also periodically forms inward strands or layers of phloem, embedded in the xylem: Such phloem strands are called included phloem or interxylary phloem. Phloem of pine trees has been used in Finland as a substitute food in times of famine and even in good years in the northeast. Supplies of phloem from previous years helped stave off starvation in the great famine of the 1860s. Phloem is dried and milled to flour ("pettu" in Finnish) and mixed with rye to form a hard dark bread, bark bread. The least appreciated was "silkko",