Chapter 7: Linnaean Plant Names and their Types (part B) 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 343 369 book chapter https://doi.org/10.5281/zenodo.291971 978-0-9506207-7-0 291971 Byssus flos-aquae Linnaeus , Species Plantarum 2 : 1168. 1753 . "Habitat in Mari & omni aqua, prima aestate; nocte descendit parum, die natat fere." RCN: 8397. Neotype (Pentecost in Spencer & al. in Taxon , in press): Rabenhorst, Algen Europas No. 1463, " Sphaerozyga flos aquae (Linn.)" (BM-000769430). Current name: Aphanizomenon flos-aquae (L.) Ralfs ex Bornet & Flahault ( Nostocaceae ). Note: Although Drouet & Dailey (in Butler Univ. Bot. Stud. 12: 145. 1956) attempted to typify the name using 1278.1 (LINN), this collection is annotated only by Linnaeus filius and is evidently a post-1753 addition to the herbarium and not original material for the name. For this reason, Ross & Irvine (in Taxon 16: 184. 1967) rejected this type choice.