126 MINNESOTA BOTANICAL STUDIES. 



§ 5, PAMELICtlS. 



Astragalus griseopubescens Sheld. Bull. Minn. Geol. & 

 Nat. Hist. Surv. 9: 19. 1894. 



Astragalus strigosus Coult. & Fish. Bot. Gaz. 18: 299. 1893. 

 Not Astragalus strigosus (Kellogg) Sheld. 

 Montana. 



Astragalus scalar is Wats. Proc. Am. Acad. 23:270. 1888, 

 Mexico. 



Astragalus flexuosus Dougl. in G. Don. Gen. Syst. Gard. 

 & Bot. 2 : 256. 1832. 



Phaca flexuosa Hook. F1. Bor.-Am. 1: 140. 1833. 

 Tragacantha flexuosa OK. Rev. Gen. PL 2: 945. 1891. 

 Phaca elongata Hook. F1. Bor.-Am. 1: 140. 1833 



Saskatchewan, British Columbia, Northwest Territory, 

 Assiniboia and lat. 50° north to Minnesota, west to Montana, 

 south to Colorado and Nebraska. 



Astragalus ricliardsoni n. n. 



A. vaginatus Richakdson, in Hook. F1. Bor.-Am. 1: 149. 1838. 

 Not A. vaginatus Pall. Astrag. 46. 1800. 

 Northern British America. 



Astragalus debilis (Nutt.) Gray. Proc. Acad. Philad. 

 II. 7 : 60. 1863. 



Phaca debilis Nutt. in Torr. and Gray. F1. 1 : 345. 1838. 

 Tragacantha debilis OK. Rev. Gen. PI. 2:944. 1891. 

 Plains of the Rocky mountains. 



Astragalus sabulosus Jones. Zoe. 2:239. 1891. 

 Utah. 



Astragalus limatus n. sp. 



Perennial, robust, bushy but not woody, minutely pubescent 

 with sparse, ascending hairs; stems 3 to 6 dm. high, erect, 

 thick, striate: leaves 10 to 12 cm. in length, numerous, rachis 

 channelled; leaflets 1 to 3.5 cm. in length, in live to nine pairs, 

 orbicular, obovate or oblong, rarely obcordate, obtuse or retuse; 

 stipules triangular-ovate, foliaceous, reflexed; peduncles thick, 

 striate, exceeding in length the leaves, loosely subspicate; 

 flowers 10 to 15 mm. in length, spreading or reflexed; calyx 

 cylindrical, appressed pubescent with nigrescent hairs, the 

 teeth unequal, much shorter than the tube; corolla magenta 

 colored when fresh, becoming violet when dried; legume 2 to 



