Malus trilobata Malus trilobata Malus trilobata, the Lebanese wild apple, erect crab apple or three-lobed apple tree, is a species in the family Rosaceae in the genus "Malus". Some authorities place it in the segregate genus "Eriolobus", as "Eriolobus trilobatus". The distribution of "Malus trilobata" in Asia includes West and South Anatolia, Syria, Lebanon and North Israel, while in Europe its distribution encompasses the east section of Greek Thrace (Evros Prefecture) and southeastern Bulgaria. Surviving trees in Lebanon can be found in the Mount Lebanon Range, at altitudes of . The last remaining forest community of the endemic wild apple in the
Étienne-Louis Malus Étienne-Louis Malus Étienne-Louis Malus (; ; 23 July 1775 – 24 February 1812) was a French officer, engineer, physicist, and mathematician. Malus was born in Paris, France. He participated in Napoleon's expedition into Egypt (1798 to 1801) and was a member of the mathematics section of the Institut d'Égypte. Malus became a member of the Académie des Sciences in 1810. In 1810 the Royal Society of London awarded him the Rumford Medal. His mathematical work was almost entirely concerned with the study of light. He studied geometric systems called "ray systems", closely connected to Julius Plücker's "line geometry". He conducted