Myristicaceae stamens. However, "Myristica" is probably pollinated by true ants, a case of myrmecophily. A few New Guinea "Myristica" species have evolved hollow stem swellings in which ants reside. This facilitates a mutualistic relationship known as myrmecophily, and is similar to that of "Cecropia". The most important products of the family by far are the nutmeg and mace spices, both respectively derived from the seed and aril of "Myristica fragrans", a tree native to the Moluccas. A hallucinogenic snuff (containing a derivative of tryptamine) that is used by certain Amazonian tribes is obtained from the bark of "Virola elongata" and other
A City is Not a Tree A City is Not a Tree A City is Not a Tree is a widely cited 1965 essay (later published as a book) by the architect and design theorist Christopher Alexander, first published in the journal "Architectural Forum", and re-published many times since. In 2015 the essay was published as a book including new exegesis commentaries on the original essay from other architects, engineers and physicists. "A City is Not a Tree" has been widely described as a landmark text, and the Resource for Urban Design Information calls it "one of the classic references in the literature of the built