An individual instance of Nyssa sylvatica (blackgum)
Permanent unique identifier for this particular organism:
This small tree grows along the north side of the sidewalk that marks the north side of Library Lawn, between Garland Hall and the Divinity School.
The general characteristics of black gum are described in the notes for the tree across the sidewalk from this one. That tree is a male, while this tree is a female. In the fall, female black gum trees produces fleshy black fruits.