Harvard University Herbaria & Libraries

Asteraceae
GH: 02172566 Centaurea nigrescens Willdenow USA: Pennsylvania [data not captured] H. W. Pretz 12678 1925-8-16
Brassicaceae
GH: 00983368 Cardamine diphylla (Michaux) Alph. Wood USA: Pennsylvania 1/2 to 5/8 mi w x sw of (LVRR) Laurys Statio... H. W. Pretz 12494 1925-5-3
GH: 01084709 Diplotaxis muralis (Linnaeus) de Candolle USA: Pennsylvania Levans Jctn. about 1 1/4 mi S x SE of Schnec... H. W. Pretz 1925-7-12
GH: 01693270 Rorippa sylvestris (Linnaeus) Besser USA: Pennsylvania about 7/8 to 1 mi SE x E of East Texas P.O. H. W. Pretz 12681 1925-8-23
Isoetaceae
GH: 00738396 Isoetes echinospora Durieu USA: Maine Eddington: Eddington H. W. Pretz 12711 1925-9-10
Lamiaceae
GH: 01599388 Monarda media Willdenow USA: Pennsylvania Allentown: facing river, about 2 mi E x NE o... H. W. Pretz 12642 1925-7-26
Santalaceae
GH: 01932723 Comandra umbellata (Linnaeus) Nuttall USA: Pennsylvania about 1 1/8 mi NW x W of Slatington (LVRd) H. W. Pretz 12600 1925-7-4