Theodor Heinrich Hermann (Theodor) von Heldreich (1822–1902)
German botanist. Studied botany in Montpellier, 1837; in Geneva with A. P. de Candolle and Alphonse de Candolle, 1838–42. Based in Athens from 1843; made several botanical research trips to Sicily, Naples, Crete, and Anatolia. Travelled to England; became keeper of the herbarium of Philip Barker-Webb in Paris, 1849–50. Director of Athens botanical gardens, 1851–1902; conservator of the natural history museum, 1858–83. Discovered over seven hundred new species in Greece and the Orient and wrote on flora in the works of Homer.