Bonsai are potted trees sculpted to create a miniature version of their mature species.  Most of my collection came from seeds and cuttings which I collected in 1980 and have been in training for 38 plus years . A few date back to 1970.  My favorite species to work with are pines, cedars, maples, oaks and some of the flowering species such as crabapple and hawthorne. Although I have many singles of species collected on our travels.