154 MINNESOTA BOTANICAL STUDIES. 



Astragalus sparsiflorus A. Gray. Proc. Am. Acad. 6: 

 205. 1866. 



Tragacantha sparsiflora OK. Rev. Gen. PI. 2: 948. 1891. 

 Colorado. , 



Astragalus sparsiflorus A. Gray, var. majnsculus A. 



Gray, Proc. Am. Acad. 6:206. 1866. 



A. sparsiflorus n. sp . var. major A. Gray. Proc, Acad. Philad. 

 11.7:60. 1863. 

 1^ ot A. snhulatus Bi^B. var. major DC. Prodr. 2:284. 1825. 

 Colorado. 



Astragalus giganteus (Pall.) Sheld. Bull. Minn. Geol. 

 and Nat. Hist. Surv. n. 9: 65. 1894. 



Astragalus alpinus Linn. var. giganteus Pall. Astrag. 42. 1800. 

 Newfoundland, Maine and northern Vermont; Colorado, 

 Wyoming: Montana and north to Hudson bay, British Colum- 

 bia and Alaska. 



Astragalus astragaliuus (DC.) Sheld. Bull. Minn. Geol. 

 and Nat. Hist. Surv. n. 9:65. 1894. 



Phaca astragalina DC. Astrag. 64. 1802. 



Astragalus alpinus Linn. Spec. 760. 1753. 



A. alpinus Pa-lt. Reise3:446. 1771-76. 



Tragacantha alpina OK. Rev. Gea. PI. 3: 942. 1891. 

 Not 4. alpinus (Linn.) Sheld. Bull. Minn. Geol. and Nat. Hist. 

 Surv. D. 9:65. 1894. 



A. montanus Pall. Reise 2: 568. 1771-76. 



A. montanus Jacq. F1. Austr. 3: 131. 1775. 

 Not A. montanus Linn. Spec. 760. 1753. 

 Colorado and Labrador. 



Astragalus elegans (Hook.) 



Phaca elegans Hook. F1. Bor.-Am. 1: 144. 1833. 

 mot A. elegans BvNQE. Sp. Astrag. Geront. 2:89. 1869.1" 



Phaca parviflora Nutt. in T. and G. FI. 1: 348. 183S. 



A. oroboides Hornem. var. americanus A. Gray. Proc. Am. 

 Acad. 6:205. 1866. 

 Not A. alpinus (L ) Sheld. var. americanus (Hook.) Sheld. infra, 



which is based on Phaca frigida L. var. americanus Hook. F1. 

 Bor.-Am. 1:140. 1833. 



Labrador, western British America, and south to the Rocky 

 mountains. 



10. This species may be designated as 



Astragalus tabrisianus n. n. 



