Chapter 7: Linnaean Plant Names and their Types (part R) Author Jarvis, Charlie Department of Botany, Natural History Museum, Cromwell Road, London, UK text 2007 Linnaean Society of London in association with the Natural History Museum London Order out of Chaos. Linnaean Plant Types and their Types 785 805 book chapter https://doi.org/10.5281/zenodo.291971 978-0-9506207-7-0 291971 Rudbeckia oppositifolia Linnaeus , Species Plantarum 2 : 907. 1753 . "Habitat in Virginia." RCN: 6554. Lectotype (Reveal in Taxon 32: 653. 1983): Clayton 609 (BM-000051688 ). Current name: Heliopsis helianthoides (L.) Sweet ( Asteraceae ).