The Mary Potter crabapple honors the daughter of a director of this type of tree-studying facility at Harvard
... Tree size, flower color, fruit color, and growth and 
branching habit vary ... A few Crabapples have good fall color and double-
flowered types hold... [DOC] [TLE] crabapples [pdf] - Arnold Arboretum [PAR] the study, introduction, and promotion of the genus Malus (apples ... plants 
representing approximately 166 taxa (kinds).