Botany
The herbarium of the Academy of Natural Sciences of Drexel University houses the Academy's collection of botanical specimens. Because the Academy was one of the first scientific institutions in the New World, the herbarium holds some of the oldest and most important plant collections in the Americas. PH (the official, internationally recognized abbreviation for the herbarium at the Academy of Natural Sciences) has about 1.4 million dried, pressed specimens and plays a vital role as a resource for research on plants and on the history of American botany.