238 LBAPLETS. 



above : leaflets large, 3 to 4 inches long, H inch wide, acumi- 

 nate at apex, at base acute, somewhat remotely and not deeply 

 serrate, the serratures almost spinescently acute, neither face 

 of leaflet notably veiny : umbels many : fruits rather large, 

 oval-elliptic, marked superficially by more than usually narrow 

 ribs and broad intervals in cross section showing thin curved- 

 linear dorsal and large triangular lateral ribs ; oil-tubes large 

 and deep, impressed into the seed, rendering the periphery of 

 the seed sinuous. 



Collected on grounds of the college farm, at Brookings, South 

 Dakota, in 1893, by J. J. Thornber. Type in U. S. Herb. 

 Evidently a more robust and widely branched plant than C. 

 maculata, the leaflets several times larger, and the fruit of 

 marked character. 



CicuTA ARGUTA. Subterranean and closely partitioned 

 part of stem so shortened as to be almost obsolete, the fascicle 

 of roots therefore proceeding from just below the surface of 

 the ground, these 6 or more, large and fleshy, nearly terete, 4 

 inches long or more, Yi inch thick : leaves small for the plant 

 and very compact, only 8 inches long beyond the petiole, of 

 some 80 leaflets and biternate ; leaflets 2 inches long or less, 

 narrowly lanceolate, closely, deeply and acutely serrate from 

 base to apex, the short veins running to the tips of the serra- 

 tures very prominent beneath: fruit short, rounded, nearly 

 as broad as long ; ribs thick and broad, the intervals narrow, 

 as seen in cross section the dorsals oblong-oval, the laterals of 

 more than twice their size and gibbous-oval ; oil-tubes not 

 impressed. 



Type sheet in U. S. Herb, from Forest City, South Dakota, 

 3 Sept., 1892, by Griffiths and Schlosser. 



CicuTA VALiDA. Stature of the plant and its underground 

 parts not known : lowest leaf 2 feet long including the very 

 stout and apparently turgid or inflated petiole, this more than 

 % inch thick, the lamina a foot long, 10 inches across below 



