Monographs Details: Chamaecrista sect. Apoucouita
Authors:Howard S. Irwin, Rupert C. Barneby
Authority: Irwin, Howard S. & Barneby, Rupert C. 1982. The American Cassiinae. A synoptical revision of Leguminosae tribe Cassieae subtrib Cassiinae in the New World. Mem. New York Bot. Gard. 35, part 1: 1-454.

A.  Sectio APOUCOUITA (Bentham) Irwin & Barneby

Chamaecrista sect. Apoucouita (Bentham) Irwin & Barneby, Brittonia 31(1): 155. 1979. Cassia sect. Apoucouita Bentham in Martius, Fl. Bras. 15(2): 129. 1870.—Sp. typica: C. apoucouita Aublet = Chamaecrista apoucouita (Aublet) Irwin & Barneby.

Cassia subgen. Lasiorhegma sect. Apoucouita sensu Bentham, 1871, pp. 577-578; Irwin & Rogers, Mem. N.Y. Bot. Gard. 16: 71-118. 1967; Irwin & Barneby, Brittonia 29(3): 277-290. 1977.

For description of the section and for full synonymy of each species see Irwin & Rogers, 1967 and Irwin & Barneby, 1977, II. cc. We present here a key to the series, species and varieties of sect. Apoucouita which incorporates the known dispersal of each; a bare enumeration establishing the nomenclature in genus Chamaecrista; and minimal commentary as seemed appropriate.