ROBINSON. — SPECIES OF MIMOSA. 831 
strigose pubescence, and strikingly different fruit.— H. & B. in Willd. 
Spec. iv. 1035; Benth. Trans. Linn. Soc, xxx. 435. WM. humilis, H. & 
B, 1. c. 1037. IM. intermedia, Kunth, Mim. 16, t. 6. — Near Tapachula, 
Chiapas, Nelson, no. 3851; Central America, Herb. Pavon, acc. to 
Hemsl. (Trop. Am.) 
++ ++ ++ Ascending or erect, suffruticose : leaf-rhachis usually armed by pairs of 
spines between the pinne; pods oblong, elongated, 4 to 9 cm. in length. 
« 67. M. asperata, L. Strigose-hirsute: branches thickish, sub-herba- 
ceous, pithy, armed with scattered or opposite, laterally compressed broad- 
ased brown or light gray spines: pinnz 4 to 9 pairs; leaflets 12 to 
40 pairs, linear-oblong, acutish, crowded, puberulent, ciliolate: peduncles 
Tather stout, 2 to 5 em. long; pods oblong, rounded and mucronate at 
the apex, covered throughout by short stiffish upcurved tawny hairs: 
valves dividing into 15 to 20 short broad segments. — Syst. Nat. ed. 10, 
1312; Benth, 1. . 437 (where extensive synonymy is cited); I. pigra, 
L. 1. «. &M. polyacantha, hispida, & canescens, Willd. Spec. iv. 1034-1038. 
M. pellita, H. & B.in Willd. 1. c. 1037; Kunth, Mim. 27, t. 9.— 
Widely spread in the tropics of both hemispheres. Mexico, between 
San Luis Potosi and Tampico, Palmer, no. 1037 (coll. of 1878-1879) ; 
Jalisco, W. G. Wright, no. 1835, Rose, nos. 1422, 1564, Nelson, no. 
4136; Colima, Palmer, no. 1877; Vera Cruz, Bourgeau, no. 2209, 
Nelson, no. 526, OC. L. Smith, no. 998; borders of Oaxaca, Welson, uos. 
2333, 2856; Guatemala, nos. 1735 and 3294 of J. D. Smith's sets; 
Panama, Fendler, no. 98, Seemann, no. 527. 
«~ Var. Berlandieri. Less pubescent: stems merely strigillose: 
leaves shorter than in the typical form; pinnz 4 to 6 pairs; primary 
rhachis only 3 to 5 em. long, mostly unarmed: pods sparingly hispid 
With short more or less strigose hairs, segments of the valves 8 to 1d. 
— M. Berlandieri, Gray in Torr. Bot. Mex. Bound. 61; Benth. 1. ¢. 
BIE ine Valley of the Rio Grande, near Matamoras, Berlandier, no. 
3146; Micos, San Luis Potosi, Pringle, no. 3798, Careful search fails 
to show any significant or constant difference between this and M. aspe- 
rata, which can be regarded as a specific distinction. Mueller’s no. 90 
from Vera Cruz, Hartmann’s no. 519 and Lamb’s no. 511 from Sinaloa, 
show clear transitions to the typical form. 
