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Asclepias amcena vel Asclepias Syriaca = [graphic] Indian hemp = Milk weed.19th century
Miller, Maria E., 1813-1875.
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Botanical contributions1834 – 1872
Gray, Asa, 1810-1888., Torrey, John, Engelmann, George, 1809-1884.
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Botanical pamphlets1834 – 1863
Masters, Maxwell T., Daubeny, Charles, 1795-1867., Hallett, Frederic F., Vaillant, Léon