Chapter 7: Linnaean Plant Names and their Types (part U) 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 906 910 book chapter https://doi.org/10.5281/zenodo.291971 978-0-9506207-7-0 291971 Ulva rugosa Linnaeus , Mantissa Plantarum Altera : 311. 1771 . "Habitat ad Cap. b. spei. Koenig. 39." RCN: 8365. Type not designated. Original material: Herb. Linn. No. 1275.9 ( LINN ) ; Koenig 39 , Herb. Linn. No. 1275.31, lower right specimen ( LINN ) ; Koenig s.n. , Herb. Linn. No. 1275.8, left specimen ( LINN ) . Current name: Splachnidium rugosum (L.) Grev. ( Splachnidiaceae ). Note: Unusually, there is a syntype ( Koenig 39 , 1275.31 LINN) in existence for this name but, unfortunately, its identity does not correspond with the generally accepted usage of S. rugosum (L.) Grev. Ulva rugosa may therefore prove to be a candidate for conservation (see Spencer & al. in Taxon , in press).