502 
Zizia cordata (Walt.) Koch, Gen. Trib. Pl. Umb. 129 (1825); Smyrnium cordatum 
Walt. Fl. Car. 114 (1788). 
This is the Thaspium trifoliatum of Newton & Jenney’s Report. 
Custer, altitude 1,650 m., June 2; Little Elk Canyon, altitude 1,100 m., June 28; 
Elk Canyon, altitude 1,200 m., June 29 (No. 721). 
Berula erecta (Huds.) Coville, Contr. Nat. Herb. iv, 115 (1898); Sivm erectum Huds. 
Fl. Ang]. 108 (1762). 
Hot Springs, altitude 1,050 m., August 10 (No. 722). 
Cicuta virosa maculata (L.) Coult, & Rose, Rev. Umb. 130 (1888); Cieuta macu- 
lata L. Sp. Pl. i, 256 (1753). 
Little Elk Canyon, altitude 1,100 m., June 28 (No. 723). 
Osmorrhiza nuda Torr. Pac. R. Rep. iv, 93 (1856). 
Elk Canyon, altitude 1,300 m., June 29; Lead City, altitude 1,600 m., July 6 
(No, 724). 
Osmorrhiza aristata (Thunb.) Rydberg, Bot. Surv. Neb. iii, 37 (1894); Charophyl- 
lum aristatum Thunb. Fl. Jap. 119 (1784); 0. longistylis DC. Prodr. iv, 232 (1830). 
Elk Canyon, altitude 1,200 m., June 29; Lead City, altitude 1,600 m., July 6; Mot 
Springs, altitude 1,100 m., (No. 725). 
Cymopterus montanus Torr. & Gr. FI. i, 624 (1840). 
In fruit only: Hot Springs, altitude 1,100 m., June 14 (No. 726). 
Cymopterus acaulis (Pursh) Rydberg, Bot. Surv. Neb. iii, 38 (1894); Selinum 
acaule Pursh, Fl. ii, 732 (1814); Thapsia glomerata Nutt. Gen. i, 184 (1818). 
Only one specimen, collected while the train stopped at Edgemont, altitude 
1,053 m., May 27 (No. 727). 
Peucedanum villosum Nutt.; Wats. Bot. King Surv. v, 131 (1871). 
Very common around Hot Springs, altitude 1,100 m., June 13 (No. 728) 
Pastinaca sativa L. Sp. Pl. i, 262 (1753), 
Escaped, along Rapid Creek, 6 miles above Rapid City, altitude 1,100m., July 25 
(No. 729), 
Heracleum lanatum Mx. FI. Bor. Amer. i, 166 (1803). 
Rapid Creek above Rapid City, altitude 1,100 m., June 25; Little Elk, altitude 
1,100 m., June 28 (No. 730). 
Sanicula canadensis L. Sp. Pl. i, 285 (1753). 
Elk Canyon, altitude 1,200 m., June 29; Lead City, altitude 1,600 m., July 6 
(No. 731.) 
ARALIACES:. 
Aralia nudicaulis L. Sp. Pl. i, 274 (1753). 
Little Elk Canyon, altitude 1,200 m., June 28; Elk Canyon, altitude 1,300 m., 
June 29; Lead City, altitude 1,700 m., July 6; Custer, altitude 1,600 m., August 15 
(No. 732). 
At one place in Little E]k Canyon all specimens differed from the usual form in 
being lower, the leaves being only 2 dm. or less long, while in the ordinary form they 
are 3dm.; the umbels 1 to 4 on erect branches(in the ordinary form they are more 
or less spreading); flowers larger and blooming before the leaves are fully developed. 
(No. 733). 
CORNACE4. 
Cornus canadensis L. Sp. Pl. i, 118 (1753). 
Lead City, altitude 1,600 m., July 4; Sylvan Lake, altitude 2,000 m., August 17 
(No. 734). 
Cornus baileyi Coult. & Evans, Bot. Gaz. xv, 37 (1890). 
I refer this here with doubt, as I did not see it in fruit. The pubescence of the 
peduncles is woolly, and that of the lower surface of the leaves is more or less mixed 
