138 MINNESOTA BOTANICAL STUDIES. 



Astragalus ceramicus Sheld. var impertectus Sheld. Bull. Minn. 

 Geol. and Nat. Hist. Surv, n. 9: 19. 1894. 

 From Kansas and Nebraska to Utah and New Mexico. 



Astragalus wootoiii n. sp. 



Perennial, minutely sparsely pubescent, becoming glabrate; 

 stems 10 to 12 cm. in length, erect-spreading, simple or branch- 

 ing only from the base, smooth or finely striate; leaves 5 to 8 

 cm. in length, the rachis striate; leaflets 9 to 15 mm. in length, 

 in four to eight pairs, linear-oblong, obtuse, minutely appressed 

 hairy beneath, glabrous above; stipules small, membranaceous, 

 triangular deltoid, deciduous, 'peduncles 6 to 8 cm. in length, 

 subterete, loosely seven to eleven flowered; flowers 7 to 8 mm. 

 in length, erect-spreading, becoming horizontal; calyx short- 

 campanulate, the linear-filiform teeth as long as the tube: 

 corolla purplish; legume 2 to 2.5 cm. in length, 1 to 1.5 cm. 

 broad, thin, membranaceous, inflated, ovate, glabrous or very 

 finely short pubescent, diaphanous, unilocular, three to seven 

 seeded. 



Collected near Las Cruces, New Mexico, May, 1892, by Pro- 

 fessor E. O. Wooton, of the A. and M. College of New Mexico, 

 to whom this species is respectfully dedicated. 



This species is nearest to Astragalus foliolasus (Gray) 

 Sheld., but the leaflets are well developed and the legume is 

 not painted nor mottled. 



Astragalus foliolosns (Gray.) 



A. 2)icius A. Gray var. foiiolosus A. Gray. Proc. Am. Acad. 6: 

 215. 1866. 

 TSSoi A. foiiolosus BvaoE. Gen. Astray. Geront. 2: 125. 1886.* 

 P/mcapicta A. Gray. PI. Fendl. 37. 1849. 

 A. pictus var. angustatus JoisTES. Zoe. 4.37. 1893. 

 Not ^1 angustaUis Boiss. Diag. i. 2:47 1849. 



A. ceramicus Sheld. var. jonesii Sheld. Bull. Minn. Geol. and 

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

 New Mexico, Colorado and Utah. 



Astragalus geyeri A. Gray. Proc. Am. Acad. 6:214. 



1866. 



Tragacantha qeyeri OK. Rev. Gen. PI. 2:945. 1891. 

 Fhaca annua Geyer. in Hook. Lond. Journ. Bot. 6:213. 1847, 

 Not A. annuus DC. Astrag. 127. 1802. 



Southern Montana, Wyoming, southern Idaho, Nevada and 

 eastern California. 



*Tbis species being heretofore considered valid and having no synonyms may talte 

 the name Astragalus safraiihollous n. n. from its original locality. 



