Chapter 7: Linnaean Plant Names and their Types (part C) 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 370 473 book chapter https://doi.org/10.5281/zenodo.291971 978-0-9506207-7-0 291971 Crataegus tomentosa Linnaeus , Species Plantarum 1 : 476. 1753 . "Habitat in Virginia." RCN: 3645. Type not designated. Original material: Clayton 55 (BM); Kalm , Herb. Linn. No. 643.10 ( LINN ) . Current name: Crataegus calpodendron (Ehrh.) Medik. ( Rosaceae ). Note: This name has been discussed by Eggleston (in Rhodora 10: 78. 1908), Sargent (in Rhodora 11: 182. 1909) and Palmer (in J. Arnold Arb. 19: 287. 1938), who proposed it should be treated as a nomen ambiguum. It appears to be a candidate for rejection.