152 minnesota botanical studies. 



§ 16. Oroboideus. 



Astragalus apilosus Sheld. Bull. Minn. Geol. and Nat. 

 Hist. Surv. n. 9:19. 1894. 



Astragalus glaber Michx. F1, Bor. Am. 2:66. 1803. 

 "Not Astragalus glaber LiAM. Ency. Meth. 1: 525. 1783. 



a synonym of Oxytropis glabra DC. Astrag. 95. 1802, a Siber- 

 ian plant. 



Not Astragalus glaber DC. Astrag. 118. 1802. 



which is a synonym of Astragalus fragrans WiLLD. Sp. PI. 

 a : 1294. 1803. a native of the Orient. 



Tragacantha michauxii OK. Eev. Gen. PI. 2:941. 1891. 

 Not A. michauxianus Boiss. Diag. i. 2: 62. 1843, 



a species found in Kurdistan. 

 Florida to North Carolina. 



Astragalus obcordatus Ell. Sk. Bot. S. Car. 2 : 227 



1824. 



A. elhottii Dietr. Syn. PL 4: 1080. 1850. 

 Tragacantha obcordata OK. Rev. Gen. PI. 2: 946. 1891. 

 1^ ot A. obcordatus Boiss. Diagn. i. 6: 38. 1855. 



which is a synonym of 



• A. anacardius BvyiQE. Syn. Astrag. Geront. 2: 105. 1869, 



a Persian species. 



Georgia and Florida. 



Astragalus palaus Jones. Zoe. 4:37. 1893. 

 Utah. 



Astragalus engelmanni n. sp. 



A. flagellaris En'GLM. in herb. 

 Perennial, glabrous throughout; stems 8 to 30 cm. in length, 

 diffusely procumbent, terete, branching at the base; leaves 3 to 



6 cm. in length, the rachis finely channelled above; leaflets 3 to 



7 moa. in length, in seven to eleven pairs, ovate to oblong, 

 obtuse or retuse; stqmles triangular-lanceolate, connate below; 

 peduncles slender, twice or three times exceeding the leaves, 

 subcapitately four to eight flowered; flowers 8 to 10 mm. in 

 length, erect-spreading; calyx short-cylindrical, unsymmetrical 

 at the base, finely pubescent with short, appressed, hairs, the 

 teeth short- triangular, spreading; corolla ochroleucous tinged 



