LT: John Clayton - 159 - BM. (BM)

• Lectotype designated by:  Reveal, J. L. & C. E. Jarvis. 2009. Typification of names of temperate North American plants proposed by Linnaeus. Taxon 58(3): 978.

LT: Clayton 159; ; LT (as "Type Specimen" in Godfrey, J. Elisha Mitchell Sci. Soc. 68:262.1952) [LINN/BM web page treats each sheet as Lectotype, but Godfrey cited only "159," as "Type Specimen" as seen in a photograph supplied to Godfrey pre-1952. J. Reveal annotated as "Lectotype" only the sheet marked 159, this sheet being marked as photographed in 1937. Thus the second Clayton sheet (photographed in Dec 1951) is perhaps better called an "isolectotype" - jp-2004]