Lectotype : LT: Paspalum dimidiatum L. LT designated by Chase, Proc. Biol. Soc. Washington 24: 137 (1911). LT subsequently designated by Nash, N. Amer. Fl. 17: 165 (1912). The ealier lectotypification by Hitchcock, Contr. U.S. Natl. Herb. 12: 116 (1908) was ineffective.
- Lectotype designated by: Chase, A. 1911. Notes on genera of Paniceae. IV. Proc. Biol. Soc. Washington 24: 137.
- Lectotype designated by: Hitchcock, A. S. 1920. The genera of grasses of the United States. U.S.D.A. Bull. (1915-23) 772: 225.