Byssus flos-aquae Linnaeus , Species Plantarum 2 : 1168. 1753 Chapter 7: Linnaean Plant Names and their Types (part B) Jarvis, Charlie FB78 1221558 (L.) Ralfs ex Bornet & Flahault Bornet & Flahault Linnaeus 1753 Cyanophyceae Nostocaceae Aphanizomenon CoL Bacteria Nostocales Cyanobacteria species flos-aquae      Byssus flos-aquaeLinnaeus,  Species Plantarum2: 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).   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 Taxon16: 184. 1967) rejected this type choice.