t . , 
EvupHorpia.. / CXXI. EUPHORBIACEZ. 487 
cillate, subsessile, oval and entire; ped. terminal, solitary, 1-flowered.—2 In 
rocky shades, Penn. Pursh. Jl. Aug. 
7. E. Laruyris. Mole-tree. Caper Spurge. 
St. erect, stout, smooth; lvs. lance-linear, rather acute, entire, glabrous, 
~. sessile; wmbel mostly 4-rayed, rays dichotomous; glands of the invol. lunate, 2- 
horned, the horns dilated and obtuse-——@) Cultivated grounds and gardens. 
Stem 2—3fhigh. Leaves2—4/ by 3—9”, numerous and arranged in 4 rows on the 
stem. Umbel of 4 verticillate branches with a central subsessile head. Jl.—Sept.§ 
8. E. Herronu. Riddell. Herron’s Euphorbia. 
Erect, pilose, with opposite branches; lower lvs. rhombic-ovate, middle 
ones lanceolate, upper lance-linear, denticulate, obtuse at apex, acute at base; 
umbels small, few flowered.—@ Ohio. Plant hairy in all its parts, 1—2f high. 
Petiole ciliate, half as long as the leaves. Aug. Sept. 
9. E. ancustirotia. Haworth ?—S?¢. much branched at base, ascending and 
With barren branches above; lvs. crowded, linear, obtuse; wmdel many-rayed, 
proliferous ; floral invol. 2-leaved, leaflets broad-cordate.—2| A heath-like plant 
of the gardens, native of , If high. Leaves 1’ by 1'’, very numerous, spi- 
rally arranged, apparently verticillate. + 
10. E. Maretnata. Pursh.—JLwvs. oblong-lanceolate, subcordate, sessile, acute, 
mucronate, entire on the margin, glabrous ; wmbel 3-rayed, once or twice dicho- 
tomous; involucrate lvs. oblong, cordate, colored and membranaceous at the 
margin; inner segments of the floral involucre roundish; caps. hoary-pubes- 
cent.—@) Gardens. A handsome species, remarkable for the variegated leaves 
of the involucre. f 
* * Heads axillary or fasciculate. Leaves opposite. 
11. E. Hypericirouia. Spurge. Eye-bright. 
St. smooth, branching, nearly erect, branches divaricate-spreading; lvs. 
opposite, oval-oblong, serrate, sub-falcate; corymbs terminal.—q@) A slender and 
branching plant, found 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. Corymbs of small white heads, terminal 
and axillary. July, Aug. ; 
12. E. Macunata. (E. depressa. Ell. E. thymifolia. Linn.) Spotted Spurge. 
Procumbent; branches spreading; lvs. serrate, oblong, hairy ; fs. axillary. 
—() A prostrate plant, spreading flat upon the ground, in sandy fields, Mass. ! 
to Ind.! and S. States. Stem 6—12’ in length, much branched, hairy. Leaves 
opposite, 3—6” long and 4 as wide, oblong, obtuse, serrulate, smooth above, 
often 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. potyeontrotia. Knot-grass Spurge. 
Procumbent; Jws. entire, lanceolate and oblong, obtuse at base; /fs. in the 
axils of the branches, solitary.—(@ Sea shores, R.I.! to Flor. A very smooth, 
succulent, prostrate plant, with milky juice. Stems 6—10’ long, dichotomous, 
procumbent. Leaves oblong and linear-lanceolate, rarely cordate at base, 3—5” 
by 1”, petioles about 1’. Stipules subulate and simple. Heads small, in the 
forks of the purple stem. June, July. 
14, E. Ipecacuanne. Ipecac Spurge. 
Procumbent or suberect, small, smooth ; /vs. opposite, obovate and oblan- 
ceolate ; ped. elongated, axillary, 1-flowered—2 Sandy soil, Middle! and S. 
States. Root perennial, very long. Stem rather thick and succulent, 3—8’ 
long. Leaves 14—2’ by 3—6”, sessile, varying from obovate to linear. Heads 
solitary. Peduncles as long as the leaves. June. 
15. E. pentata. Michx. Toothed-leaf Spurge. 
Hairy; lvs. opposite, oval, dentate; fls. crowded at the summit of the 
stem.—(@) Shady rocks, Penn., Torrey, to Tenn., Michaux. Upper leaves 
spotted.—Probably a variety of E. hypericifolia, Jl. Aug. 
