EUPHORBIACE^. (srURGE FAMILY.) 403 



§ 2. Leaves sliptilate, all opposite : (jlands of the involucre 4 : annuals. 

 * Stems erect or ascending : seeds A-angled, transversely rugose. 



14. E. hypericifolia, L. Smooth throuf^hout ; stem (i°- 1° high) erect; 

 hraiulics altemaio, :2-i;mkc(l ; leaves (^'-1' loiij,') petioled, lanceolate-oblong, 

 oMique and obtuse or acute at the base, equally serrulate on l)otli margins ; 

 stipules reflexed ; involucres in dense lateral long-peduneled cymose clusters ; 

 a])pcndaLres of the glands white, kidney-shaped ; capsules rather acutely angled, 

 smooth; seed minute, reddish. — South Florida. — Var. communis, Engelm. 

 Stem often pubescent, ascending (1°- H° high); oblong or lanceolate, obtuse 

 or cordate at the base, often blotched with red, shaiply serrate on the lower 

 margin, entire below the middle on the upper; clusters terminal; appendages 

 of the glands rounded, entire ; capsule round-angled, smooth ; seeds larger, 

 nearly black. — Cultivated grounds, Florida, and nortliward. Aug. and Sept. 



15. E. pubentissima, Michx. " Perennial, erect, verj- pubescent ; stem 

 somewhat dichotonious ; leaves opposite, sessile, oval, slightly cordate, obtuse ; 

 peduncles solitary ; interior segments of the involucre (glands) white." Mi- 

 chaux. — " Pine barrens in the middle districts of Georgia and Carolina. — 

 Leaves nearly 1 ' long. Flowers in the forks ; peduncles nearly as long as the 

 leaf." Elliott. ( • ) 



IG. E. glabella, Swartz? Stem stout, smooth, ascending, alteiiiately 

 branching or forking from the base, purple ; leaves very numerous, somewhat 

 fleshy, nearly sessile, oblong-ovate, cordate, acute, entire, with the margins invo- 

 lute, the uppermost crowded ; involucres in dense terminal clusters ; glands pel- 

 tate, orbicular, bordered by a white appendage ; capsule smooth, acute-angled ; 

 seed bluish, faintly rugose. — Sandy sea-shore, South Florida. — Stem 1° liigh. 

 Leaves 3"- 5" long. Stipules fringed. 



17. E. pilulifera, L. Pubescent ; stem erect, forking from the base ; 

 leaves short-jietioled, oblong-ovate, oblique, acute at each end, serrate ; invo- 

 lucres minute, in dense terminal short-stalked clusters ; glands without appen- 

 dages ; capsule acute-angled, hairy ; seeds faintly rugose. — South Florida. — 

 Stem 4' - 6' high. Leaves 5"- 8" long. 



* * Stems prostrate, diffuse : leaves small : involucres small and mostly crowded near 

 die summit of the branches. 



18. E. maculata, L. Pubescent; leaves oblong, serrate, oblique at the 

 base, petioled, often blotched with purple ; stipules 2-parted ; capsule acute- 

 angled, hairy ; appendages of the glands transversely oblong, white ; seed 4- 

 angled, smooth, faintly wrinkled or pitted on the concave sides. (E. depressa, 

 Torr.) — Cultivated ground and waste places, very common. June -Oct. — 

 Stems 6' - 12' long. Leaves 3" -4" long. 



19- E. insequUatera, Bonder. Smooth ; leaves oval or obovate, oblique 

 and acute or obtuse at the base, obscurely serrulate, petioled ; stipules ovate, 

 entire or sparingly short-fringed ; appendages of the glands white, transversely 

 oblong ; capsule smooth, acute-angled ; seed 4-anglcd, granular-rouirhencd and 

 faintly wrinkled on the sides. — South Florida. May -Oct. — Stems G'-12' 

 long. Leaves 2" -5" long. 



