Concept
Polygala
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Seven plants, including three orchids and a gesneria: flowering stems and floral segments. Coloured etching, c. 1837.
Date: 1837Reference: 27537i
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An experimental enquiry into the properties of the Polygala senega : submitted, as an inaugural thesis, to the examination of the Reverend John Andrews ..., the Trustees, and medical professors of the University of Pennsylvania, on the eighth day of June, 1803 for the degree of Doctor of Medicine / by Thomas Massie.
Massie, Thomas, 1782-1864.Date: [1803]
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Five flowering plants, including milkwort (Polygala vulgaris) and sea heath (Frankenia laevis). Chromolithograph by W. Dickes & co., c. 1855.
W. Dickes & Co.Date: [1855]Reference: 24780i
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A flowering alpine milkwort (Polygala chamaebuxus var. grandiflora). Chromolithograph, c. 1878, after H. Moon.
Moon, Henry George, 1857-1905.Date: 12 January 1878Reference: 28335i
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An inaugural dissertation on the Polygala senega, commonly called seneca snake-root : submitted to the examination of the Rev. John Ewing, S.S.T.P., provost, the trustees & medical faculty, of the University of Pennsylvania, on the 22d day of May, 1798, for the degree of Doctor of Medicine / by Isaac Winston, of Virginia ; honorary member of the Philadelphia Medical Society.
Winston, Isaac.Date: 1798