EUPHORBIACE^:. (SPURGE FAMILY.) 403 



2. Leaves stipulate^ all opposite ; glands of the involucre 4 : annuals. 

 * Stems erect or ascending : seeds 4^-angled, transversely rugose. 



14. E. hypericifolia, L. Smooth throughout; stem ( -l high) erect; 

 branches alternate, 2-ranked ; leaves ('-!' long) petiolcd, lanceolate-oblong, 

 oblique and obtuse or acute at the base, equally serrulate on both margins ; 

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

 appendages of the glands white, kidney-shaped ; capsules rather acutely angled, 

 smooth; seed minute, reddish. South Florida. rVar. COMMTJNIS, Engelm. 

 Stem often pubescent, ascending (l-l high); oblong or lanceolate, obtuse 

 or cordate at the base, often blotched with red, sharply 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 northward. Aug. and Sept. 



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

 somewhat dichotomous; 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. ( * ) 



16. E. glabella, Swartz ? Stem stout, smooth, ascending, alternately 

 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 high. 

 Leaves 3" - 5" long. Stipules fringed. 



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

 leaves short-petioled, 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 

 the 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' - 1 2' long. Leaves 3" - 4" long. 



19. E. insequilatera, Sender. 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-angled, granular-roughened and 

 faintly wrinkled on the sides. South Florida. May -Oct. Stems 6' -12' 

 long. Leaves 2" - 5" long. 



