Chapter 7: Linnaean Plant Names and their Types (part T) 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 878 905 book chapter https://doi.org/10.5281/zenodo.291971 978-0-9506207-7-0 291971 Tetragonotheca helianthoides Linnaeus , Species Plantarum 2 : 903. 1753 . "Habitat in Virginia." RCN: 6655. Replaced synonym of: Polymnia tetragonotheca L. (1767) , nom. illeg. Lectotype (Reveal in Jarvis & al., Regnum Veg. 127: 93. 1993): Clayton 97 (BM-000051150). Generitype of Tetragonotheca Linnaeus. Current name: Tetragonotheca helianthoides L. ( Asteraceae ). Note: Turner & Dawson (in Sida 8: 299. 1980) indicated that they had seen a photograph of "Gronovius 301", which they regarded as the type. However, Gronovius 301 is associated with Heuchera americana , and there is no p. 301 in Gronovius' Flora Virginica . Reveal's choice of Clayton 97 (BM) as type is accepted here.