STANDLEY TREES AND SHRUBS OF MEXICO. 363 



41. Mimosa hemiendyta Rose & Robins. Contr. U. S. Nat. Herb. 8: 32. 1903. 

 Yucatan and Campeche ; type from Apazote, Campeche. 



Shrnb, 1.5 to 6 meters high; leaflets 4 to 5 mm. long, glabrate; fruit with 

 a broad, erose or shallowly lacerate wing. 



42. Mimosa lacerata Rose, Contr. U. S. Nat. Herb. 5 : 141. 1897. 

 Queretaro, Morelos, Puebla, and Oaxaca ; type from Piaxtla, Puebla. 

 Shrub. 1.5 to 2.5 meters high, armed with stout spines; leaflets 2 to 3 mm. 



long : fruit with a broad, deeply lacerate wing. 



43. Mimosa leucaenoides Benth. Lond. Journ. Bot. 5: 89. 1846. 

 San Luis Potosi and Hidalgo ; type from Zimap^n, Hidalgo. 



Shrub or small tree, 3 to 4.5 meters high; leaflets 1.5 to 2.5 cm. long, lus- 

 trous ; fruit unarmed, about 6 mm. wide. 



44. Mimosa micheliana ' Robinson, Proc. Bost. Soc. Nat. Hist. 31: 259. 1904. 

 Known only from the type locality. La Correa, Guerrero, altitude 250 meters. 

 Shrub, armed with small recurved spines; leaflets 9 to 13 mm. long; flowers 



pale pink. 



45. Mimosa ervendbergii ^ A. Gray, Proc. Amer. Acad. 5 : 178. 1862. 

 Veracruz, Oaxaca, and Chiapas; type from Tantoyuca, Veracruz. Central 



America. 



Shrub, probably scandent, armed with very short recurved spines; leaflets 

 1 to 3 cm. long ; flower heads in large naked panicles. " Zarza," " sierrilla " 

 (Oaxaca). 



46. Mimosa arg'illotropha Robinson, Proc. Bost. Soc. Nat. Hist. 31: 257. 1904. 

 Known only from the type locality. La Correa, Guerrero. 



Shrub, armed with very small recurved spines; leaflets 1 cm. long or shorter; 

 flowers white. 



47. Mimosa tenuiflora Benth. Lond. Journ. Bot. 5: 92. 1846. 

 Type from Zimapan, Hidalgo. 



Pinnae 1 to 3 pairs ; branchlets glabrous. 



48. Mimosa invisa Mart. Herb. Fl. Bras. 121. 1837-40. 



Schrmikia hrachi/carpa Benth. in Hook. Journ. Bot. 2: 130. 1S40. 



Sinaloa to Guerrero and Veracruz. Widely distributed in tropical America. 



Procumbent or prostrate plant, chiefly herbaceous, armed with very nu- 

 merous short recurved spines; leaflets 5 mm. long; flowers pink; fruit hispid, 

 4 mm. wide. "Dormilona" (Costa Rica). 



The roots have a disagreeable odor and are said to have irritant properties. 

 In Costa Rica the bitter infusion of the leaves is considered tonic, and the 

 seeds are sometimes used as an emetic. 



49. Mimosa grahami A. Gray, PI. Wright. 2: 52. 1853. 

 Northern Sonora (type locality) and Chihuahua. 



Shrub, armed with rather slender spines; leaflets 4 mm. long; flowers 

 pink ; margins of the fruit with a few short spines, about 6 mm. wide. 



50. Mimosa eurycarpa Robinson, Proc. Amer. Acad. 33: 322. 1898. 

 Mimosa eurycarpoides Robinson, Proc. Amer. Acad. 36: 472. 1901. 



Sinaloa to Oaxaca ; type collected between Guichocovi and Lagunas, Oaxaca. 



' Named for Marc Micheli, a botanist of Geneva, who published a paper de- 

 scribing the Leguminosae collected in Mexico by Eugene Langlasse. 



^ L. C. Ervendberg made a small collection of plants in the District of 

 Huasteca, Veracruz, in 1858 and 1859. This was reported upon by Gray in 

 1861 (Proc. Amer. Acad. 5: 174-190). 



