Malus prunifolia Malus prunifolia Malus prunifolia is a species of crabapple tree known by the common names plumleaf crab apple, plum-leaved apple, pear-leaf crabapple, Chinese apple and Chinese crabapple. It is native to China, and is grown elsewhere for use as an ornamental tree or as rootstock. It reaches from between 3 and 8 meters tall and bears white flowers and yellow or red fruit. It was described botanically by Willd. in the genus "Pyrus", and transferred to "Malus" in 1803 to produce the nomenclatural treatment used here. "Malus prunifolia" is found in China in the provinces of Gansu, Guizhou, Hebei, Henan,
Bonus-malus Bonus-malus The term bonus-malus (Latin for good-bad) is used for a number of business arrangements which alternately reward (bonus) or penalize (malus). It is used, for example, in the call center and insurance industries. In call centers, a bonus-malus arrangement is a section in the contract between the company buying the call center services (buyer) and the company providing the call center services (call center) allowing for a payment to be made from one company to the other. As part of the contract, both companies agree on a set of Key Performance Indicators (KPIs). These are measurements for how the