Plants Collected in Paraguay. 97 



thickly covered with fuscous hairs, usually 3-6 together and spread- 

 ing divaricately, pluri-celled, a large flat seed in each cell. 



mimosa BalansaB, Mich., Mem. Soc. Geneve, xxviii, No. 7, p. 52. 



Asuncion (1500). August-September. 



A small shrub, 15-25 cm. high, with tough roots, growing on 

 grassy knolls. Pinnae 2, divaricate, at the apex of a petiole 10-15 

 mm. long. Leaflets 6-10 pairs, oblong, mucronulate, pubescent, 

 5 or 6 mm. long. Heads purple, on short peduncles. Legumes 

 hairy, 10-15 mm. long, 2-3 seeded. 



Mimosa COliferta, Benth., Mart. Fl. Bras., xv, pt. 2, 331. 



Between Villa Rica and Escoba (47t). January. 



This I did not find in flower, but the fruit is very peculiar, the 

 legumes rolling themselves into balls, which are 3 cm. in diameter 

 when mature. They are densely clothed with long, rather weak 

 prickles. A shrub 1-1^^ m. in height, stems and petioles covered 

 with prickles like those on the fruit. Leaves of 2 pinnae, at the end 

 of a petiole ; pinnae 5-7 cm. long, with about 20 pairs of oblong- 

 cuspidate leaflets. 



Mimosa diTersipila^ Mich., 1. c, 57. 



Caballero (429 and 504). = Balansa 1463. January. 



A fuscous-hirsute. and lepidote species, with an angular, spineless 

 stem 5-9 dm. high. Pinnae 2, at the end of a very short petiole or 

 sessile, 4-6 cm. long. Leaflets oblong, cuspidate, oblique, strongly 

 lepidote and hirsute, about 8 mm. long, 12-20 pairs. Flowers 

 racemosely disposed on long naked terminal stalks. Heads globose, 

 about 1 cm. in diameter, purple, on short peduncles. 



Mimosa Morongii, Britton, n. Rp. 



Branches and petioles pubescent with spreading hairs ; petioles slender, 

 1-2 cm. long ; pinnae 4-6, digitate, short-stalked, l|-2 cm. long ; leaflets 

 approximate, 14-18 pairs, obliquely linear-oblong, acutish, 3-5 mm. long, 2 

 mm. wide, hirsute-pubescent beneath, glabrous above; peduncles axillary, 

 longer than the petioles ; heads globose-ovoid, 1-1^ cm. long ; legumes sessile, 

 2-3-jointed, linear-oblong, acute, 1^ cm. long, 4 mm. wide, the joints papillose 

 and somewhat pubescent. Similar to M. digitata, Benth. 



Central Paraguay (728). May. The same as Balansa's no. 1478 

 from Trinidad, referred by M. Micheli to M. hirsuta, Sprang. 

 Annals N. Y. Acad. Sci., VII, Jan. 1893.— 7 



