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6 to 12 pairs, linear to narrowly oblong-lanceolate, obtuse, glabrous 

 above, 3 to 8 Hues long : racemes short and dense, 1 or 2 inches long 

 in fruit, or less, on elongated peduncles : calyx campanulate, 2 lines 

 lung, the narrowly acuminate teeth little shorter than the tube ; 

 corolla whitish, 3 or 4 lines long: pod coriaceous, sessile, 2-celled, 

 compressed-subglobose and somewhat didymous, 3 or 4 lines long, 

 slightly pubescent, at length reticulately veined. — In the San 

 Miguelito Mountains (816 Schaffner, mainly). 



Astragalus Hartwegi, Benth. (A. vaccanim, Gray.) At San 

 Lorenzo de Laguna, Coahuila (235). 



Astragalus Nuttallianus, DC. At Monterey (237). 



Astragalus leptocarpus, Torr. & Gray. At Monterey, a 

 single specimen, and near San Luis Potosi (822 Schaflfner) ; 176 

 Parry & Palmer. 



Astragalus Arizonicus, Gray. At Parras, Coahuila (234). 

 Stems more erect than usual. 



Astragalus Greggii. Apparently biennial or perennial, the 

 slender stems ^ to 1 foot long or more, densely pubescent with white 

 spreading or reflexed hairs: stipules triangular, surrounding the stem; 

 leaves 1 to 1^- inches long; leaflets 4 to 8 pairs, obovate to oblong, 

 obtuse or truncate or retuse, tomeutose-pubescent or nearly glabrous, 

 1 to 3 lines long : peduncles elongated, tomentose ; raceme loosely 

 few-flowered : calyx tomentose, the long-acuminate teeth exceeding 

 the short campanulate tube ; corolla 4 lines long, red and white : pod 

 chartaceous, completely 2-celled by the intrusion of the dorsal suture, 

 sessile, ascending or spreading, linear-oblong, compressed, slightly 

 curved, glabrous, 6 to 9 lines long. — In the mountains east of Saltillo 

 (238) ; also collected by Gregg (439), the locality not stated. 



Astragalus strigulosus, HBK., var. gracilis, Hemsl. In 

 the San Miguelito Mountains (821 Schaffner) ; 175 Parry & Palmer. 



Astragalus parvus, Hemsl. Much larger specimens than the 

 original, the ascending or erect stems a foot high or less; leaflets 

 linear to linear-oblong, 2 to 6 lines long. In the San Miguelito 

 Mountains (815 Schaffner); 174 Parry & Palmer. 



Astragalus triflorus, Gray. In the San Miguelito Moun- 

 tains (816 Schaffner, in part) ; 173 Parry & Palmer. 



Astragalus Antoninus. Biennial, canescent with short appressed 

 pubescence, the slender ascending stems flexuous, i to 1 foot high : 

 leaves 2 or 3 inches long; leaflets 6 to 9 pairs, linear to narrowly 

 oblong, obtuse, 4 to 6 lines long: peduncles elongated; racemes open, 

 few-flowered : calyx pubescent, tubular-campanulate, 3 lines long, the 



