Chapter 7: Linnaean Plant Names and their Types (part P) 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 718 782 book chapter https://doi.org/10.5281/zenodo.291971 978-0-9506207-7-0 291971 Polemonium dubium Linnaeus , Species Plantarum 1 : 163. 1753 . "Habitat in Virginia." RCN: 1294. Lectotype (designated here by Reveal): Clayton 556 , Herb. Linn. No. 220.4 ( LINN ; iso- BM-000051652) . Current name: Phacelia dubia (L.) Trel. ( Hydrophyllaceae ). Note: Although Fernald (in Rhodora 46: 54. 1944) noted that he had seen a photograph of the type, he did not specify which collection he considered this to be.