Sheldon: species of astragalus. 153 



with purple?; legume 10 to 18 mm. in length, coriaceous, glab- 

 rous, sessile, incurved, both sutures intruded, unilocular, few 

 to many seeded, cavity webby. 



Collected on the Brazos, Texas, April, 1839, February, 1844. 

 Also in open woods near Houston, Texas, March, 1842, by 

 Ferdinand Lindheimer. Near to A. distortus T. and G., but 

 the plant has a more reclining or procumbent posture. I take 

 pleasure in dedicating this species to Dr. George Engelmann, 

 whose collections of Astragalus I have been permitted to study, 

 and who, while he left no manuscript description of the species, 

 evidently recognized it as new, for he marked it '■'A. flagellaris 

 n. sp." 



Type specimen in the herbarium of the Missouri Botanical 

 Garden. 



Astragalus distortus T. and G. Fl. 1 : 333. 1838. 



Tragacantha distorta OK. Rev. Gen. PI. 2; 944. 1891. 

 Illinois, Missouri, Arkansas, Indian Territory and Texas. 



Astragalus sileranus Jones. Zoe. '2:243. 1891. 

 Utah. 



Astragalus liudheimeri Englm. in A. Gray. PI. Wr. 1 : 



52. 1852. 



Tragacantha lindheimeri OK. Rev. Gen, PI. 2: 9^6. 1891. 

 Texas. 



Astragalus lentiformis A. Gray. Bot. Calif. 1 : 156. 

 1880. 



Tragacantha lentifoi-mis OK. Rev. Gen. PI. 2: 946. 1891. 



California and Nevada. 



Astragalus iemnioni A. Gray. Proc. Am. Acad. 8:626. 

 1873. 



Tragacantha lemmoni OK. Rev. Gen. 2:946. 1891. 



California. 



Astragalus brewer! A. Gray. Proc. Am. Acad. 6:207. 

 1860. 



Tragacantha breweri OK. Rev. Gen. PI. 2:943. 1891. 

 California. 



