Harvard University Herbaria & Libraries

Apocynaceae
GH: 02178258 Apocynum floribundum Greene USA: Pennsylvania Southern slope of Mt. Neversink, Reading. Ol... H. Wilkens 2927 1933-8-4
Asteraceae
GH: 02172565 Centaurea nigrescens Willdenow USA: Pennsylvania [data not captured] H. Wilkens 3071 1933-10-11
Brassicaceae
GH: 00946699 Boechera patens (Sullivant) Al-Shehbaz USA: Pennsylvania along Schuylkill River 1 mile south of Readi... H. Wilkens 2743 1933-5-10
GH: 01097560 Cakile edentula (Bigelow) Hooker USA: New Jersey Absecon Beach. Beach back of Margate City H. Wilkens 1933-8-19
Gentianaceae
GH: 02165056 Obolaria virginica Linnaeus USA: Pennsylvania Oley Furnace: south slope of Sheep Hill H. Wilkens 2726 1933-4-21
Orchidaceae
GH: 01937542 Cypripedium acaule Aiton USA: Pennsylvania north slope of Furnace Hill, northwest of Ol... H. Wilkens 2760 1933-5-19
Orobanchaceae
GH: 02034370 Agalinis purpurea (Linnaeus) Pennell USA: New Jersey Ocean City H. Wilkens 2995 1933-9-2
Plantaginaceae
GH: 01805088 Veronica americana Schweinitz ex Bentham USA: Pennsylvania [data not captured] H. Wilkens 2849 1933-6-25
Polygalaceae
GH: 01968593 Polygala verticillata Linnaeus USA: Pennsylvania Oley Furnace: south slope of Sheep Hill H. Wilkens 2917 1933-7-16
Rosaceae
GH: 01723222 Prunus pensylvanica Linnaeus f. USA: Pennsylvania Reading: west slope of Mt. Penn H. Wilkens 2738 1933-5-5
Vitaceae
GH: 01577820 Parthenocissus quinquefolia (Linnaeus) Planchon USA: Pennsylvania Oley Furnace H. Wilkens 2912 1933-7-16