350 PROCEEDINGS OF THE AMERICAN ACADEMY 



Mimosa MALACornYLLA, Gray. At Monclova, Coahuila (299). 



Mimosa monancistra, Benth. At Soledad, Coahuila (290). 



Mimosa zygophylla, Benth. At Parras (29G), and in the moun- 

 tains east of Saltillo, Coahuila (297). 



Mimosa acanthocarpa, Benth. In the mountains near San Luis 

 Potosi (G24 Schaffner, and G25 in part). This is the same as 217 

 Parry & Palmer (which is described by Hemsley as M. flexuosa, 

 Benth.), with better developed and mostly larger leaves and leaflets. 

 M. jlexuosa, aside from its slender flexuous branches, differs in having 

 its mature pods narrower (less than 2 lines broad) and armed with 

 straighter spines. 



Mimosa biuncifera, Benth., var. (?) In the mountains about San 

 Luis Potosi (023 Schaifner) ; 210 Parry & Palmer, so referred by 

 Hemsley. They also closely approach M. Lindheimeri. 



Mimosa Lindheimeri, Gray, var. (?) The leaves with 1 to 3 

 pinnjE and few leaflets, as in 1363 Wright. At Uvalde, Texas (291), 

 and at Saltillo, Coahuila, in flower (295). Also a variety with few 

 but larger piiinaa and more numerous leaflets, and the broad pods 

 obtuse; at Parras (292), and in the mountains east of Saltillo, in 

 flower (293, 294). 



Mimosa ? At Parras were collected flowering specimens of 



another species of this group, with old fruit, but the foliage imperfectly 

 developed. Pubescent, with small curved spines mostly in pairs : 

 pinuce 2 to 4 pairs, with 4 to 6 pairs of small leaflets : pod coriaceous, 

 unarmed, pubescent, straight, ^ to 1 inch long by 2 lines broad. 



Mimosa strigillosa, Torr. & Gray. At Juraz, Coahuila (2115). 



ScHRANKiA ACULEATA, AVilld., var. (?) In the Sierra Madre 

 south of Saltillo (301), and sparingly at Soledad, Coahuila, and at 

 Sutherland Springs, Texas. Identical with 2513 Berlandier, so named 

 by Bentham, but with the pod densely pubescent. The pod is long- 

 beaked, instead of acute as described and figured from the orifjinal 

 Vera Cruz specimens upon which the species was founded. 



SciiRANKiA suBiNERMis. Glabrous, Unarmed excepting the pod: 

 pinnee a single pair upon a petiole about an inch long ; leaflets 6 to 10 

 pairs, oblong, veinless, slightly pubescent: peduncle 6 to 18 lines long: 

 pod 2 inches long, beaked, glabrous, naked or very sparingly armed 

 with short spines, chiefly on the margins. — In the mountains north of 

 Monclova (302). 



Leuc^na glauca, Benth. At Saltillo (307) 



AcACTA Palmeri. A stout shrub, glabrous or nearly so, with 

 short stout curved infrastipular and occasional scattered spines : 



