Harvard University Herbaria & Libraries

Orchidaceae
AMES: 02031769 Calopogon tuberosus (Linnaeus) Britton, Stearn & Poggenburg USA: Michigan 2 miles west of Ann Arbor D. Houghton 1838-6-23
GH: 02029460 Calypso bulbosa (Linnaeus) Oakes USA: Michigan Near Forty Mile Point, Lake Superior D. Houghton 1838-6-20
AMES: 02066039 Coeloglossum viride bracteata (Muhlenberg) Grey USA: Michigan Port Huron: [no additional data] D. Houghton 1838-5-31
AMES: 02065472 Cypripedium reginae Walter USA: Michigan Ann Arbor: [no additional data] D. Houghton 1838-6-25
AMES: 02066572 Platanthera ciliaris (Linnaeus) Lindley USA: Michigan Kalamazoo: Austin's Lake D. Houghton 1838-7-30
AMES: 02066871 Platanthera clavellata (Michaux) Luer USA: Michigan St. Joseph D. Houghton 1838-8-13
AMES: 02045135 Platanthera flava herbiola (R. Brown) Luer USA: Michigan Jackson D. Houghton 1838-7-12
AMES: 02046041 Platanthera leucophaea (Nuttall) Lindley USA: Michigan Jackson D. Houghton 1838-7-9
AMES: 02051989 Pogonia ophioglossoides (Linnaeus) Ker Gawler USA: Michigan 2 miles west of Ann Arbor D. Houghton 1838-6-23
Rosaceae
GH: 01728433 Amelanchier laevis Wiegand USA: Michigan Port Huron. Bank of Black river. D. Houghton 1838-6-2
GH: 01728435 Amelanchier laevis Wiegand USA: Michigan Port Huron. D. Houghton 1838-5-30
GH: 01730087 Amelanchier neglecta (Eggleston) K. R. Cushman, M. B. Burgess, E. T. Doucette & C. S. Campbell USA: Michigan Port Huron D. Houghton 1838-5-30
GH: 01609183 Geum canadense Jacquin USA: Michigan Ann Arbor: Ann Arbor D. Houghton 1838-6-29
Saxifragaceae
GH: 01712925 Mitella cordifolia Lamarck USA: Michigan Near Port Huron D. Houghton 1838-6-9