STANDEE Y TREES AND SHRUBS OF MEXICO. 361 



Sinaloa to San Luis Potosf, Tabasco, and Chiapas. Central America and 

 South America ; type from Peru. 



Shrub, 1 to 3 meters high, armed with short recurved spines ; leaflets oblique, 

 3 to 8 cm. long, usually obtuse, densely pubescent ; flowers pinkish ; fruit 2 to 

 3 cm. long, 5 mm. wide, setose-hispid. " Sensitiva," " vergonzoso " (Oaxaca). 



23. Mimosa g'oldmanii Robinson, Proc. Amer. Acad. 33: 308. 1898. 



Known only from the type locality, between Juehitau and Chivela, Oaxaca. 

 Erect shrub with brownish branches ; leaflets glabrous, aculeate-ciliate. 



24. Mimosa manzanilloana Rose, Contr. U. S. Nat. Herb. 1: 326. 1895. 

 Sinaloa to Guerrero ; type from Manzanillo, Colima. 



Shrub, 1 to 1.5 meters high, armed with short stout recurved spines ; leaflets 

 1 to 4 cm. long, obtuse or acute ; flowers pink ; fruit short, hispidulous, about 5 

 mm. wide. 



25. Mimosa acapulcensis Robinson, Bot. Gaz. 28: 135. 1899. 

 Known only from Acapulco, Guerrero, the type locality. 



Spiny shrub ; leaflets oblique, 3 to 10 cm. long, acute or obtuse ; flower heads 

 racemose; fruit 5 to 6 mm. wide. 



26. Mimosa leptocarpa Rose, Contr. U. S. Nat. Herb. 1 : 326. 1895. 

 Colima to Guerrero ; type from Manzanillo, Colima. 



Straggling shrub, armed with very short recurved sinnes; leaflets oblong, 

 obtuse, about 1 cm. long; flowers said to be yellowish white; fruit broad, very 

 thin, glabrous, 7 to 11 cm. long, armed on the margin with short curved spines. 

 " Sierilla " (Guerrero). 



27. Mimosa lactifitia Delile ; Benth. Trans. Linn. Soc. 30: 393. 1875. 



Oaxaca ; described from cultivated specimens of uncertain source ; it is pos- 

 sible that the name does not apply properly to the Oaxaca plant. 

 Shrub, armed with short straight spines. 



28. Mim.osa deamii Robinson, Proc. Amer. Acad. 35:324. 1900. 

 Known only from the type locality, Salina Cruz, Oaxaca. 



Shrub, 3 meters high ; flowers pinkish ; fruit 3 to 3.4 cm. long, strigose. 



29. Mimosa psilocarpa Robinson, Proc. Amer. Acad. 35:325. 1900. 

 Known only from the type locality, in the mountains of Oaxaca. 

 Fruit glabrous, unarmed, 2 to 3 cm. long. 



30. Mim^osa sicyocarpa Robinson, Proc. Amer. Acad. 33:313. 1898. 



Known only from the type locality, between San Sebastian and Bufa de Mas- 

 cota, Jalisco. 



Shrub, 1 to 2 meters high, sparsely armed with short recurved spines ; leaflets 

 narrowly oblong, 1.5 to 2 cm. long ; fruit 2.5 to 3 cm. long, densely spiny. 



31. Mimosa caerulea Rose, Contr. U. S. Nat. Herb. 5: 141. -1897. 

 Morelos and Oaxaca ; type from Cuernavaca. 



Unarmed shrub, about a meter high ; leaflets oblong, 1 to 1.5 cm. long, obtuse 

 or acute, nearly glabrous; flowers purplish; fruit glabrous, the margins minutely 

 aculeolate. 



32. Mimosa mixtecana T. S. Brandeg. Univ. Calif. Publ. Bot. 3:379. 1909. 

 Puebla and Oaxaca ; type from the region of San Luis Tultitlanapa, Puebla. 

 Shrub, armed with straight brown spines; leaflets 6 to 20 mm. long; flowers 



pink ; fruit glabrous, unarmed, long-stipitate. 



33. Mimosa pudica L. Sp. PI. 518. 1753. 



Veracruz and probably elsewhere. Widely distributed in tropical America ; 

 type from Brazil. 



Plants decumbent or spreading, suffrutescent occasionally, but perhaps hardly 

 to be considered a shrub ; leaflets linear-oblong, about 1 cm. long ; flowers white 



