509 



Hills: Limestone District near Sips Spring, altitude 1,900 m., July 27 (No. 807). 



Balsamorhiza sagittata (Pursli) Nutt. Trans. Amer. Phil. Soc. vii, 350 (1841); 

 Buphthahnum sagitlafitm Pursli, Fl. ii, 564 (1814). 



It was eolleeted in fruit oulj' on liills near 8ips Spring, altitude 1,5)00 m., July 27 

 (No. 808). 



Bidens Isevis (L.) B. S. P. Cat. PI. N. Y. 29 (1888); Helianthns larin L. Sp. PI. ii, 

 900 (17.53). 



All the specimens collected Avere low, with short rays. Pringle, altitude 1,500 m., 

 August 6 (No. 809). Some were very slender; leaves about 2 to 1:5 cm. long, not con- 

 nate; heatls altont mm. long, few-flowered; sparinglj' strigose (No. 810). 



Hymenopappus filifolius Hook. Fl. Hor. Amer. i, 317 (1834). 

 Hot Springs, altitude 1,100 m., .June 13 and August 3 (No. 811). 



Ptilepida acaulis (Pursh) Uritton, Mem. Torr. Club, v, 339 (1894); (iailJnrd'm 

 aidulis l*ursh, Fl. ii. 743 (1814); AcUnella rtcrtw/is Nutt. Gen. ii, 173 (1818). 



Dry hills: Hot Springs, altitude 1,100 m., June 12; Lead City, altitude 1,800 m., 

 July 4 (No. 812). 



Gaillardia aristata Pursh, Fl. ii, 573 (1814). 



Prairies: Rochford, altitude 1,000 m., July 12; Limestone District, altitude 1,900 m., 

 July 20 (No. 813). 



Dysodia papposa (Vent.) Hitch. Trans. St. Louis Acad, v, 503 (1891); T<t(jetes 

 papposa Vent. Ilort. Cels. t. 36 (1800). 



Waste jdaces: Hot Sjirings, altitude 1,050 m., August 8 (No. 814). 



Anthemis cotula L. Sp. PI. ii, 894 (1753). 



Hot Springs, altitude 1,0.50 m., August 2 (No. 815). 



Achillea millefolium L. Sp. PI. ii, 899 (1753). 



Elk Canyon, altitude 1,200 ni., June 29; Lead City, altitude 1,600 m., July 4; Hot 

 Springs, altitude 1,100 m., August 2 (No. 816). 

 Artemisia canadensis Mx. Fl. ii, 128 (1803). 

 Dry ])laces: Custer, altitude 1,700 m., August 15 (No. 817). 

 Artemisia dracunculoides Pursh, Fl. ii, 742 (1814). 

 Custer, altitude 1,700 m., August 15 (No. 818). 

 Artemisia frigida Willd. Sp. PL iii, 1838 (1804). 

 Dry places: Custer, altitude 1,700 m., August 19 (No. 819). 

 Artemisia gnaphalodes Nutt. Gen. ii, 143 (1818). 

 Custer, altitude 1.700 m., August .19 (No. 820). 



Petasites sagittata (Pursh) Gray, Bot. Cal. i, 407 (1876); Tiissihu/o saf/Ulala 

 Pur.sh, Fl. ii, 531 (1814). 



A largo patch found on Eapid Creek, above Rochford, altitude 1,6.50 m., July 12, 

 but only three specimens in fruit secured (No. 821). 



Arnica cordifolia Hook. Fl. Bor. Amer. i, 331 (1834). 



On shaded hillsides: Flk Canyon, altitude 1,200 ra., July 29; Lead City, altitude 

 1,600 111., July 4; Rochford, altitude 1,700 m., July 12 (No. 822). 



Arnica alpina (L. ) Glin, Monogr. Arn. Fps. 1799; Ai-nica monlan<i nlpina \j. Sp. 

 PI. ii, 884 (1753). 



In the Black Hills this is generally 3-cephalous, and 3 to 5 dm. high. Little Elk 

 Canyon, altitude 1,100 m., July 28; Custer, altitude, 1,800 m., July IG (No. 823). 



Senecio rapifolius Nutt. Trans. Amer. Phil. Soc. vii, 409 (1841). 

 /riio sp(Miiiieus :ir(! unusually large, souie being 6 dm. high. In shade<l places 

 amoug rocks: Custer, altitude 1,700 m., August 12 (No. 824), 



Senecio lugens Ricluirds. App. Frankl. Journ. 747 (1823). 



In the specimens collected the leaves are unusually narrow and nearly entire. 



