KUPHORBIACE^. 



313 



Near cultivated grounds. N. Y. to Car. Aug.— Oct. (Xj.—Stem 6—12 

 inches long, much branched from the base. Leaves on short petioles, with 

 purplish blotches above. Flowers crowded near the summit of the stem. 



Spotted Spurge. 



4. E. polygonifolia Linn. : procumbent, branching, very smooth, succu- 

 lent; leaves oblong and linear-oblong, petiolate, obtuse, sometimes sub- 

 cordate at base ; flowers solitary in the forks of the stem ; glands trans- 

 versely oblong, stipitate. E. maritinia Nidt. 



Sandy sea-shores. N. Y. to Car. July — Sept. %.. — Stem diffuse, 4 — 10 

 inches long. Stipules subulate, simple or simply cloven. Flowers solitary, on 

 peduncles which are longer than the petioles. Seaside Spurge. 



5. E. Ipecacuanha Linn. : procumbent or nearly erect, small, smooth ; 

 leaves opposite, varying from obovate to linear-lanceolate ; peduncles ax- 

 illary, l-flowered, elongated ; glands reniform. 



Sandy soils. N. Y. to Car. June. %.. — Root very long and tapering. Stem 

 short, the branches 6 — 12 inches long. Leaves sessile, often purplish. Flowers 

 solitary, on peduncles which are about as long as the leaves. Emetic, and 

 .sometimes uied as a substitute for the Ipecacuanha of the shops. 



Wild Ipecac. 



6. E. portulacoides Linn. : erect ; leaves entire, oval, refuse ; lower ones 

 ternate, spatulate, obtuse, smooth ; peduncles axillary, l-flowered, as long 

 as the leaves ; glands of the involucre roundish. 



Sandy soils. Penn. Muhl. June — Aug. %. — It may be a variety of E. 

 corollata. Purselain-leaved Spurge. 



** FUnvers somewhat umbclled, invohicratc. 



7. E. Peplus Linn. : leaves membranaceous, broad-obovate, petioled, 

 entire, smooth ; umbel 3 — 4-cleft ; glands of the involucre lunate, the horns 

 very long; capsule somewhat winged. 



Cultivated grounds. Penn. to Virg. W. to Miss. July, Aug. %. — Involucels 

 or floral leaves large. Flowers conspicuous. Introduced from Europe. 



Petty Spurge. 



S. E. viercurialina Mich. : stem weak and slender ; leaves opposite or 

 ternate, subsessile, oval, entire ; umbel simply 3-cleft, the rays l-flowered. 



Shady rocky situations. Penn. and Ken. PursJn July, Aug. Tj.. — Resem- 

 bles Mercurialis annua. Mercurialis-like Spurge. 



9. E. Lathyris Linn. : stem erect ; leaves submembranaceous, oblong- 

 lanceolate, entire, sessile, 4-farious ; umbel 3 — 4-cleft ; glands of the invo- 

 lucre bluntly lunate ; capsule smooth. 



Near gardens and cultivated grounds. Penn. July, Aug. (5) or 1|-. — Stem 

 2 — S feet high, stout, smooth. Leaves opposite and decussate. Flowers on 

 dichotomous branches at the summit of the stem. Introduced from Europe. 



Caper Spurge. 



10. E. corollata Linn. : stem simple, erect ; leaves varying from ovate- 

 oblong to linear and spatulate-oblong, obtuse; umbel mostly 5-cleft, the 

 rays 2 — 6-forked ; glands of the involucre with a large obovate petaloid ap- 

 pendage ; capsule smooth. 



Dry fields. Can. to Car. W. to Miss. July~Aug. %..—Stem 1—3 feet 

 high, slender, rarely branched, nearly smooth. Leaves varying in form, alter- 

 nate on the stem, whorled near the flowers, often somewhat re volute. Flowers 

 on slender peduncles, in a terminal umbel, conspicuous. 



Large-flowered Spurge. 

 14 



