Lectotype : LT: Ischaemum muticum L.
LT designated by Green, Prop. Brit. Bot.: 193. 1929). The earlier
lectotypification by Nash, N. Amer. Fl. 17: 94 (1909) was ineffective.
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Lectotype designated by: Hitchcock, A. S. & M. L. Green. 1929. Standard species of Linnaean genera of Phanerogamae (1753-1754). 193, by Green. In Nom. Prop. Brit. Bot.. His Majesty's Stationery Office, London.