Malus sylvestris to most European countries. It occurs in a scattered distribution pattern as single individuals or in small groups. In the past "M. sylvestris" was thought to be the most important ancestor of the cultivated apple ("M. pumila"), which has since been shown to have been originally derived from the central Asian species "M. sieversii". However another recent DNA analysis confirms that "M. sylvestris" has contributed significantly to the genome. The study found that secondary introgression from other species of the genus "Malus" has greatly shaped the genome of "M. pumila", with "M. sylvestris" being the largest secondary contributor. It also
Orsonwelles malus ("Corynocarpus laevigatus"). Orsonwelles malus Orsonwelles malus is a species of spider endemic to Kauai in the Hawaiian Islands. It was described 2002, although the first individual of "O. malus" was collected in the 1890s. With individuals exceeding , it is the largest species in the family Linyphiidae. Females range from 8.93 to 14.07 mm in total length (length of carapace + abdomen) while males range from 8.74 to 10.66 mm. "O. malus" spiders are found in northwest Kauai, in the Alakai Wilderness and Kona Nā Pali areas, at elevations of , where webs are commonly found in the non-native New