382 SPURGE FAMILY. 



lar-ovate and heart-shaped ; umbel 5-rayed ; glands large and sessile ; 

 pod beset with depressed warts ; seed smooth. 



E. obtusata, Pursh. Like the preceding, but taller, l-2 high ; stem 

 leaves oblong-spatulate and obtuse, the upper heart-shaped ; floral ones 

 dilated-ovate ; umbel once or twice 3-rayed, then 2-rayed ; glands of 

 flower cup short-stalked ; pods long- warty. Va., W. and S. 



E. dictyosp^rma, Fisch. & Meyer. Resembles the preceding, but 

 slender ; leaves obtusely serrate ; glands small, almost sessile ; seeds 

 delicately reticulated. Md. to Minn., and S. 



E. Helioscbpia, Linn. Weed from Eu., in waste places N.; with stouter 

 ascending stems 6'-12' high ; leaves all obovate and rounded or notched 

 at the end, the lower wedge-shaped, finely serrate ; umbel first with 5, 

 then 3, and at length with 2 rays ; glands orbicular and stalked ; pods 

 smooth and even ; seeds with honeycomb-like surface. 



|| || Glands of the flower cup with 2 long horns ; pod smooth ; seeds sculp- 

 tured or pitted and pale. (D (D 



E. Pep/us, Linn. Waste places from Eu.; stem erect ; leaves petioled, 

 entire, round-obovate, the upper floral ones ovate ; umbel first 3-rayed, 

 afterwards 2-forked ; pod 2-crested on each lobe. 



E. commutata, Engelin. Wild from Minn, and Md., S. W., on shady 

 slopes ; stems with decumbent base ; leaves obovate, the upper sessile, 

 the rounded floral ones broader than long ; umbel 3-forked ; pod crest- 

 less ; flowers early summer. 



II || || Glands crescent-shaped; pod granular; seeds smooth, dark-col- 

 ored. 11 



. Cyparissias, Linn. CYPRESS SPURGE. Gardens from Eu. and run- 

 ning wild E. ; in dense clusters 6'-10' high, smooth ; stem and branches 

 crowded with small linear entire leaves, the floral ones small and rounded 

 heart-shaped ; umbel many-rayed. 



= = Leaves all or chiefly opposite, entire, smooth, almost sessile; pod 

 smooth. 



E. Ipecacuanhas, Linn. IPECAC SPURGE. Sandy soil from Conn., S. 

 and W.; branching repeatedly from the long perpendicular root, widely 

 spreading; leaves barely V long, varying from obovate to linear; pe- 

 duncles solitary in the forks, slender; flower-cup dull-purple, with 5 

 glands. 11 



E. Ldthyris, Linn. CAPER SPURGE, MOLE PLANT. Cult, from Eu., in 

 country gardens ; glaucous ; stem erect, stout, 2-3 high ; leaves thick ; 

 those of the stem lance-linear, floral ones oblong-ovate and heart-shaped ; 

 umbel 4-rayed, then forking ; glands short-horned. (D 



2. JATROPHA. (Name not applicable.) Chiefly tropical plants ; one 

 is a weedy wild plant, viz. 



J. stimu!6sa, Michx. TREAD-SOFTLY or SPURGE NETTLE, names refer- 

 ng to its stinging bristly hairs, which are like those of Nettles ; dry 

 o,ndy soil, branching, 6'-12' high ; leaves rounded heart-shaped, 3-5- 

 lobed or variously cleft or parted ; flowers slender, white ; stamens 10, 

 their filaments almost separate. Sandy soil, Va., S. 11 



3. CROTONQPSIS. (Croton-like.) 



C. linearis, Michx. A low, slender plant with alternate or opposite 

 linear or lanceolate leaves, green above and silvery-hoary and scurfy 

 beneath, as are the branches. Sandy soil, N, J,, W, and S. 



rin 



