352 PROCEEDINGS OF THE AMERICAN ACADEMY 



Palmer, referred to G. conferta. It appears most probable, however, 

 that the two species cannot be kept distinct. 



Calliandra Coulteri. Stems herbaceous, very slender, glabrous, 

 about a foot long : stipules herbaceous^ lanceolate, 2 lines long ; pinnae 

 1 or 2 pairs on a rhachis ^ to 1| inches long; leaflets 6 to 10 pairs, 

 oblong, 2 to 4 lines long : peduncles 1 or 2 inches long : flowers sessile ; 

 calyx and corolla glabrous, short ; stamens pink : pod glabrous, 1 \ 

 inches long. — At vSoledad (2129); collected also by Coulter, without 

 number or locality. 



PiTHECOLOBiuM Palmeri, Hemsl. In the San Miguelito Moun- 

 tains (625 Schaffner, m part) ; 220 Parry & Palmer. The pod is 

 stipitate, 3 or 4 inches long or more. 



PiTHECOLOBiUM BREViFOLiUM, Benth. In the mountains north 

 of Monclova (306). 



PiTHECOLOBiUM (Chloroleucon) elachistophtlluji. Gray, in 

 herb. A rigid much-branched shrub, armed with numerous short 

 rather slender and somewhat curved sjiines, glabrous : pinnte a single 

 pair upon a petiole 1 or 2 lines long ; leaflets 2 to 4 pairs, oblong- 

 obovate, reticulated, 1 or 2 lines long : peduncles axillary, solitary, a 

 line long, longer and much tbickened in fruit ; heads globose, rather 

 open : flowers 2 lines long, the very numerous filaments 4 or 5 lines 

 long, united into a slender tube : pod thick-coriaceous, 2 inches long 

 by nearly \ inch wide, stipitate. — At Monterey, Nuevo Leon (289). 



PiTHECOLOBiUM (Chloroleucon) Schaffneri, A stout shrub, 

 armed with infrastipulary pairs of short stout straight spines, finely 

 pubescent: pinnte 2 to 4 pairs on a rhachis 3 to 10 lines long, with a 

 round gland at the base of the upper and lower pairs; leaflets 10 to 

 15 pairs, oblong, acute, 1 to 1|^ lines long: peduncles solitary, slender, 

 1^ to 1 inch long : heads dense, globose, nearly glabrous : filaments 

 numerous, united at base, 4 lines long : pod linear, straight or some- 

 what curved, 3 to 5 inches long by 4 or 5 lines wide, densely pubes- 

 cent, flattened, thick and indehiscent, with a resinous endocarp and 

 spongy septa between the seeds. — In the mountains about San Luis 

 Potosi (628 Schaffner, and 623 in part); 219 Parry & Palmer, re- 

 ferred by Hemsley to Acacia, the flowers being unknown, 



Prunus Capuli, Cav. At Sutherland Springs, Texas (319"), in 

 the Sierra Madre south of Saltillo (320), in the mountains about San 

 Luis Potosi (106 Schaifner), and at Guanajuato (Duges) ; 222 Parry 

 & Palmer, Popularly known as " Capulin." 



Prunus glandulosa, Torr. &, Gray. In the Sierra Madre south 

 of Saltillo (2131). 



