ORDER 113. EUPHORBIACE.E. 295 



10 E. tetripora Eng. Leaves linear-spatulate, the floral larger, transversely ovate; 



umbel 3- rayed ; seeds ^-pitted on the inner face, (i) Ga. to La. 10'. 

 HE. Latliyris L. Caper S. Stout, 2 or 3f high ; leave? sessile, lance-linear, all 



opposite ; umbel 4-rayed, then forked ; glands horned. Gardens, and . 



12 E. lieteropliylla MX. Stem with scattered branches, 1 3f ; leaves ovate, or 

 sinuate-lobed, or panduriform, all petiolate and scattered, the upper stained red on 

 the margins ; gland 1, sessile. Iowa to Ga. June, July. 



13 E. dentata MX. Stem 8' 2f, hairy, with opposite branches; leaves opposite, 

 ovate, dentate, petiolate; heads subsessile ; seed tubercled, round and black; gland 

 1 or more, stalked. Shades, Penn. to Iowa and La. 



14 E. Ipecacuanhas L. Root long, stems clustered, slender, diffusely forked ; Ivs. 

 opposite, all oblong to linear, obtuse, sessile ; heads on filiform pedicels ; seed white, 

 compressed, pitted. ii Sands, coastward. 812'. (E. gracilis Ell.) 



15 E. nudicaulis Chapm. Slender, forking above; leaves minute (\"), obovate, 

 the. upper opposite; heads minute, glands margined, greenish, il Fla. 



16 E. Helioscopia L. Stout; umbel 5-rayed, rays trifid, and forked; Ivs. cuneate 

 to obovate, whorled above ; glands round, stalked. (I) Waysides, N. 



1 7 E. dictyosperma F. & M. Slender ; nmb. once or twice 3-forked, then 2-forked ; 



floral leaves roundish-ovate, snbcordalc, cauline oblong-spatulate to obovate ; fruit 

 warty, seeds reticulated. (T) Ky., and S-W. (E. Arkansana C-B.) 



18 E. Darlingtomi Gray. Tall (2 3f ) : umbel 5-8-rayed, rays forked or trifid; 

 leaves entire, oblanceolate, the floral oval. ii Woods, Penn., and S. 



19 E. platypliylla L. Erect, 816' ; umbel 5-raycd ; leaves lance-oblong, subcor- 

 datc, serrulate, the floral triangular-ovate, (i) Lake shores, N. 



20 E. ofotusata Ph. Erect,! 2f; umbel 3-rayed, rays trifid or forked; leaves all 

 sessile, serrulate, obtuse, the floral roundish-cordate, the lower oblanceolate ; fruit 

 very warty. (T) Woods, Va., and W. 



21 E. in u 11 data Torr. Smooth, erect; umbel 3-raycd, and forked; leaves entire, 

 sessile, lanceolate to oblong-ovate ; glands round, entire ; seeds globous. 2f Wet 

 barrens, Fla. 6 12'. Heads on slender peduncles. Root woody. 



22 E. spliasrospcrma Shutt. (E. Floridana Chapm.) Lvs. lance-linear to cordate- 

 ovate ; heads green, glands creuate. Otherwise like No. 21. 2; Dry. Fla. 1 2f. 



2 J E. telcpliioides Chapm. Plant some fleshy, 25' high ; Ivs. ovate, large on the 



stem, small on the umbel. Otherwise like No. 22. u West Fla. May, June. 



24 E. liypericiiolia L. St. 1 2f; Ivs. 12", oval-oblong, serrate all around ; sds. 

 oval, obtusely 4-angled, wrinkled and tubercled, black. (I) Fields: common. 



25 E. glyptosperma Eng. St. 5 W ; Ivs. 4 6", linear-oblong, serrulate toward the 

 apex : slip, fringed ; sds. ovoid, obtuse-angled, wrinkled, amber-color. Wis., and S-W. 



26 E. maculata L. Hairy; leaves oblong, serrulate, often with a brown spot ; stip. 

 minute ; seeds sharply angled, obscurely wrinkled, reddish. *indy fields : common. 



27 E. liumistra.ta Eng. Hairy; Ivs. elliptic-obovate, serrulate at apex, rarely spot- 

 ted ; stipules fringed; seeds obtuse-angled, oval, roughened, brownish. Banks, W. 



28 E. serpyllilolia Pcrs. Smooth; Ivs. obovate-oblong, serrulate at apex, seldom 

 spotted; stipules fringed; seeds acutely 4-angled, cross-wrinkled. Banks, W. 



29 E polygoiillolia L. Lvs. oblong-linear; glands of invol. not appendaged ; seeda 

 large (1" long), ovoid, smooth and whitish. Sandy sea and lake coasts. 



30 E. Geyeri Eng. Leaves oblong-obovate ; glands with narrow appendages ; seeds 

 small d"), ovoid, acute, obtusely 3-angled, ash-colored. Sandy soils, N-W. 



31 E. serpeiis H. B. K. Lvs. round-ovate, very small (1 2"); stip. triangular; glands 

 scarcely appendaged ; pod acutely keeled, seeds ovoid-3-angled. 111. to La. 



32 E. cordiiolia Ell. Lvs. 4 6", cordate-oval; glands conspicuously white-appen- 

 daged; pods and seeds as in No. 31. Fields, South. Spreading If. 



33 E. SPLENDENS. Shrubby and fleshy, thorny; Ivs. ovate, acute both ways ; ped. ax- 

 illarj ; floral leaves in pairs, broader than long, scarlet. Madagascar. 



