for $105 in 1833. Schweinitz already had a herbarium holding 20,000 species, and the addition of the Baldwin herbarium gave Schwienitz 3000 species that he did not already have. At this time, he wrote to John Torrey, offering him duplicates from the Baldwin herbarium of plants that he already had. Schweinitz died in 1834, before he could fully mine the riches of the Baldwin herbarium. John Torrey used letters that he had received from Schweinitz to obtain from Schweinitz's widow a part of the Baldwin herbarium which he shared with Asa Gray. The rest of the Baldwin herbarium then went to its present location at the Academy of Natural Sciences of Philadelphia. The plants that Baldwin had given to Collins' main collection were given with that collection to Constantine Samuel Rafinesque in the spring of 1837 in payment of a debt owed to Rafinesque by the Collins estate. Rafinesque died in 1840 and his herbarium was acquired the following year by Elias Durand, the curator of the herbarium of the Academy of Natural Sciences of Philadelphia. Durand, a citizen of France, discarded much of the Rafinesque herbarium and sent the remainder to Paris where it remains today as the Herbier Durand in the Herbier National de Paris at the Museum National d'Histoire Naturelle. Those plants that Baldwin gave to Darlington are now in the Darlington Herbarium at West Chester University of Pennsylvania. Those that he gave to James Edward Smith are in the Smithian Herbarium at Kew Gardens, London. Other plants attributed to Baldwin are at the University of Manchester Herbarium and at the herbarium of the Los Angeles County Arboretum and Botanic Garden. The historian Ronald L. Stuckey has found that Thomas Nuttall, Stephen Elliott, Asa Gray, John Torrey, and Constantine Rafinesque together published at least 109 new species based on material provided by William Baldwin. Twelve of these descriptions were actually written by Baldwin, and published by Stephen Elliott in Sketch of the Botany of South Carolina and Georgia. Muhlenberg did not record where his specimens came from, but it is known that Baldwin sent him many. James Edward Smith also described new species from material sent by Baldwin. Honors As with nearly everyone who has contributed greatly to botany, there were plants named after William Baldwin. Thomas Nuttall named the genus Balduina for him in 1818, deriving the name from a latinization of "Baldwin". At the bottom