298 FLORA OF TEXAS. 



C. MACULATA, L. Stem large, 3°-G° liigh, purplish ; 

 leaflels ovate-lanceolate, acute, coarsely serrate; umhels 

 large, many-rayed. Marshes and lo\y places. Very poi- 

 sonous. 



LEPTOCAULIS, Nutt. 



Calyx-i^eih. obsolete ; fruit ovate, compressed on the 

 sides, often rough or bristly ; carpels 5-ribbed, the inter- 

 vals with single vitts, and 2 on the face. — Slender smooth 

 //erZ'.s with finely-dissected leaves and white /o?6'e?-5; iim- 

 hels few-rayed ; involucre none ; involucel few-leaved. 



L. DiYARiCATUS, DC. Stem widely branched ; leaves 

 2-3 pinnatifid, w4th the divisions filiform ; umbel 3-4- 

 rayed ; friut very small, roughened with minute scales. 

 Annual ; stem 18' high. 



L. DiFFUSUS, ISTutt. Plant 8'-lo' high, very slender, 

 with divaricate branches; raj/s of the umbel 1' or 1^' 

 long; fruit roughened witli minute tubercles, terminating 

 in scales or branches; 2^(^(-li(^cls filiform, two-thirds as long 

 as the rays of the umbel. — Drummond. 



L. PATEXS, Xutt. Mil r i cat e^'ith. minute tubercles; rays 

 of the umbel and umbellets (-i-S) very unequal, erect, 

 spreading; stem l°-2° high, branching above; rays of the 

 umbel 5"-10" long, of the umbellets 2"-4". — Dr. Leaven- 

 worth. 



L. ECHiXATUs, Kutt. Fruit echinate with spreading 

 uncinate bristles; rays of the umbel (5"-6" long) 4-6, of 

 the umbellets 6-10, slightly diverging. — Plant about a 

 span high; fruit armed with stiff", whitish bristles, which 

 are distinctly uncinate. — Drummond, 



