Sotiiorbia. CXXI. EUPHORBlACEiK. • 48'. 



cillate, subsessile, oval and entire; j^d. terminal, solitary, l-flowered. — % In 

 rocky shades, Penn. Pitrsh. • Jl. Aug. 



7. E. Latiiyris. Mole-iree. Caper Spurge. 



St. erect, stout, smooth ; Ivs. lance-linear, ratlier acute, entire, glabrous, 

 sessile; vmbeL mostly 4-rayed, rays dichotomous ; gUmds of tiie invoi. kmate, 2- 

 horned, the horns dilated and obtuse.— (g) Cultivated grounds and gardens. 

 Stem 2 — ^3thigh. Leaves 3 — 4' by 3-^9", niunerous and arranged in 4 rows on the 

 stem. Umbel or4 verticillate branches with-a central subsessile head. Jl. — Sept. ^ 



8. E. Herronii. Riddell. HerroTi's Ewphm-bia. 



Erect, pilose, with opposite brandies; lo^uer Ivs. rhombic-ova tc, middle 

 ones lanceolate, upper lance-linear, denticulate, obtuse at apex, acute at base^ 

 7i7!ibe/s small, li3w flowered. — (i) Ohio. Plant hairy in ail its parts, I — 2f high. 

 Petiole clii-ate, half as long as the leaves. Aug. Sept. 



y. E. ANGUsTiFOLiA. Haworth 1 — SL much branched at base, ascending and 

 with barren branches above; Ivs. crowded, linear, obttise; uvibel many-rayed, 

 proliferous ; floral invol. 2^1eaved, leaflets broad-corijate. — % A heath-lilie plant 

 of the gardens, native of- , If high. Leaves 1' by 1", ver}-- numerous, spi- 

 rally arranged, apparently verticillate. -j- 



10. E. MARG!NATA. Pursli. — Lxs. oblong-lanccoIate, subcordate, sessile, acute, 

 mucronate, entire on the margin, glabrous ; umbel 3-rayed, once or twice dicho- 

 tomous; intolucrat.c Ivs. oblong, cordate, colored and membranaceous at the 

 margin; inner segments of the floral involucre roundish; c«^«. hoary -pubes- 

 cent. — (i) Gardens, A handsome species, remarkable for the variegated leaves 

 of the involucre, f • . , 



* * Heads axiilary or fasciculate. Leaves opposiLe. 



Kll. E. HYPERiciFOLiA. Spurgc. Eye-briglit. 

 S'. smooth, brandling, nearly erect, branch'es divaricate-spreading; Ivs. 

 opposite, oval-oblong, serrate, sub-falcate; corymbs terminal. — (i) A slender and 

 branching plant, Ibund in dry and rich soils. Stem 10 — '20' high, usually pur- 

 ple, very smooth, the branches often pubescent, U. S. and Can. Leaves tripli- 

 veined, marked with oblong dots and blotches, ciliate, 6 — 12" long, and ^ as 

 wide, oblique, on very short petioles. Cor3'-mbs of small white heads, terminal 

 and axillai-y. July, Aug. 



12. E. MACULATA. (E. depressa. £J/Z. E. thymifolia. Z/m?;.) Spotted Spurge. 

 Procum.bent; branches spreading; Ivs. serrate, oblong, hairy; Jls. axillary. 



— (T) A prostrate plant, spreading flat upi!n the ground, in sandy fields, Mass. ! 

 to Lnd. ! and S. States. Stem 6 — 12' in length, much branched, hairy. Leaves 

 opposite, 3 — 6" long and J as wide, oblong, obtuse, serrulate, smooth above, 

 oiten spotted with dark purple, the margin ciliate, pale and hairy beneath, on 

 short stalks. Heads of flowers small, crowded near the summit, involucre 

 minute, white. Jl. — Sept. 



13. E. POLYGO.^JIFOLIA. Knot-grass Spurge. 



Procumbent; Ivs. entire, lanceolate and oblong, obtu.se at base; fls. in the 

 axils of the branches, solitaiy.— ® Sea shores, R. I. ! to Flor. A very smooth, 

 succulent, prostrate plant, with milky juice. Stems G — 10' long, dichotomous, 

 procumbent. Leaves oblong and linear-lanceolate, rarely cordate at base, 3 — b" 

 by 1", petioles about 1". Stipules subulate and simple. Heads small, in the 

 forks of the purple stem. June, July. 



14. E. IpkcacuanHjE. Ipecac Spiurge. 



Procumbent or suberect, small, smooth ; Ivs. opposite, obovate and oblan- 

 ceolate ; ped. elongated, a.xillary, 1-flowa-ed.— '2]. Sandy soil, Middle ! and S. 

 States. Root perennial, very long. Stem rather thick and succulent, 3—8' 

 Ion"-. Leaves U — 2' by 3 — 6", sessile, varying from obovate to linear. Heads 

 solitary. Peduncles as long as the leaves. June. 



15. E. DENTATA. Michx. Toothed-lmf Spurge. 



Hairy; Ivs. opposite, oval, dentate; fls. crowded at the summit of the 

 stem.—® Shady rocks, Penn., Torrey, to Tenn., Mlchaux. Upper leaves 

 spotted.— Probably a variety of E. hypericifolia. Jl. Aug. 



