Harvard University Herbaria & Libraries

Betulaceae
A: 02193318 Betula papyrifera cordifolia (Regel) Regel USA: Minnesota Duluth: [data not captured] O. K. Lakela 2068 1937-7-24
A: 02193317 Betula papyrifera cordifolia (Regel) Regel USA: Minnesota Duluth: [data not captured] O. K. Lakela 1914 1937-5-23
A: 02103030 Corylus cornuta Marshall USA: Minnesota Duluth: [data not captured] O. K. Lakela 1900 1937-5-8
A: 02103462 Ostrya virginiana (Miller) K. Koch USA: Minnesota Duluth: [data not captured] O. K. Lakela 2091a 1937-7-19
Ericaceae
A: 01594568 Kalmia polifolia Wangenheim USA: Minnesota on Highway 35, south of Embarrass. O. K. Lakela 1937-8-6
A: 01594569 Kalmia polifolia Wangenheim USA: Minnesota about 30 mi. n. of Duluth on Vermilion Trail... O. K. Lakela 1937-6-16
A: 01763878 Rhododendron groenlandicum (Oeder) Kron & Judd USA: Minnesota [data not captured] O. K. Lakela 1988 1937-6-16
A: 01763879 Rhododendron groenlandicum (Oeder) Kron & Judd USA: Minnesota [data not captured] O. K. Lakela 2129 1937-8-6