Name

Senegalia macilenta (Rose) Britton & Rose, N. Amer. Fl. 23:  111.  1928;

Synonymy and types

Acacia macilenta Rose, Contr. U. S. Natl. Herb. 8:  31.  1903.  - TYPE:  MEXICO.  COLIMA:  on river bottoms and mountainsides near Colima, 9 Jan-6 Feb 1891, E. J. Palmer 1209 (holotype:  US; isotypes: BM, F, MEXU, MO, NY, VT).  NOTE:  See (Rico 1995) for a additional information on the synonyms of Senegalia macilenta.

Senegalia oaxacana Britton & Rose, N. Amer. Fl.  23:  110.  1928.  - TYPE:  MEXICO.  OAXACA:  valley of Oaxaca, 8 Sep 1894, E. W. Nelson 1249 [holotype:  NY (MEXU photo); isotypes GH, US].  NOTE:  Not Myrmecodendron oaxacanum Britton & Rose (1928), an ant-acacia from Mexico that is presently considered a synonym of Vachellia X standleyi (Safford) Seigler & Ebinger (Seigler and Ebinger, 2005).  These names (but not the plants themselves) are sometimes confused because both are "acacia" species.

Lysiloma cuernavacana Britton & Rose, N. Amer. Fl.  23:  78.  1928; Acacia cuernavacana (Britton & Rose) Sandwith, Kew Bull. 1936: 8.  1936. - TYPE:  MEXICO.  MORELOS:  valley below Cuernavaca, alt. 4000 ft., 16 Oct 1900, C. G. Pringle 8382 (holotype:  NY; isotypes:  BM, E, G, GH, K, MEXU, MICH, MINN, MO, UC, US).