Harvard University Herbaria & Libraries

Asteraceae
A: 01037262 Ambrosia artemisiifolia Linnaeus USA: Massachusetts Medford: Medford, Great Bear Market parking Franc. R. Williams 2204 1941-8-11
A: 00721365 Centaurea nigra Linnaeus USA: Massachusetts Cambridge: Cambridge, Harvard Botanic Garden Franc. R. Williams 2173 1941-6-19
A: 00713767 Erechtites hieraciifolius (Linnaeus) Rafinesque ex de Candolle USA: New Hampshire Epsom: Epsom Franc. R. Williams 2386 1941-8-26
A: 01833479 Ixeris sp. USA: Pennsylvania [data not captured] Franc. R. Williams 2238 1941-5-6
GH: 01834949 Lactuca stolonifera (A. Gray) Bentham ex Maximowicz USA: Pennsylvania [data not captured] Franc. R. Williams 2238 1941-5-6
A: 00713842 Senecio vulgaris Linnaeus USA: Massachusetts Winchester: Winchester Franc. R. Williams 2387 1941-6-26
A: 00721327 Sonchus asper (Linnaeus) Hill USA: Massachusetts Winchester: weed beside driveway of Frances ... Franc. R. Williams 2295 1941
Brassicaceae
A: 00868978 Sisymbrium officinale (Linnaeus) Scopoli USA: Massachusetts Salem: North Salem Franc. R. Williams 2297 1941-7-4
Caryophyllaceae
A: 00612840 Sagina procumbens Linnaeus USA: Massachusetts Winchester: Winchester, Weed in garden of Fr... Franc. R. Williams 2273 1941-7-12
Euphorbiaceae
A: 01047705 Acalypha gracilens A. Gray USA: Massachusetts Winchester: Winchester Franc. R. Williams 2198 1941-9-4
Solanaceae
A: 00672594 Datura stramonium Linnaeus USA: Massachusetts Marblehead: Marblehead Franc. R. Williams 2318 1941-10-22
A: 00672485 Solanum emulans Rafinesque USA: Massachusetts Winchester: Winchester, Canterbury Road Franc. R. Williams 2294 1941-9-4
A: 00672485 Solanum nigrum-2 Hassler USA: Massachusetts Winchester: Winchester, Canterbury Road Franc. R. Williams 2294 1941-9-4