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 index between the surface and the interior of the glass). It was not until 1815 that Sir David Brewster was able to experiment with higher quality glasses and correctly formulate what is known as Brewster's law. This law was later explained theoretically by Augustin Fresnel, as a special case of his Fresnel equations. Malus is probably best remembered for Malus's law, giving the resultant intensity, when a polariser is placed in the path of an incident beam. His name is one of the 72 names inscribed on the Eiffel tower. Étienne-Louis Malus Étienne-Louis Malus (; ; 23 July 1775 –