EUPHORBIACE^. (sPURGE FAMILY.) 425 



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. 



22. E. Preslii, Guss. Stem often pubescent, ascending (1°- 1|° high) ; 

 leaves oblong or lanceolate, obtuse or cordate at the base, often blotched 

 with red, sharply serrate on the lower margiu, entire below the middle on 

 the upper ; clusters terminal ; appendages of the glands rounded, entire ; cap- 

 sule round-angled, smooth ; seeds larger, nearly black. — Cultivated grounds. 

 August - Sept. 



23. E. buxifolia, Lam. Stem stout, smooth, ascending, alternately 

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

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

 involute, the uppermost crowded ; involucres in dense terminal chusters ; 

 glands peltate, 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. 



24. E. pilulifera, L. Pubescent ; stem erect or prostrate, forking from 

 the base ; leaves short-petioled, oblong-ovate, oblique, acute at each end, ser- 

 rate ; involucres minute, in dense terminal short-stalked clusters ; glands 

 without appendages ; capsule acute-angled, hairy ; seeds faintly rugose. — 

 South Florida, Mobile [Mohr). — Stem 4' -6' high. Leaves 5" -8" long. 



* * Stems prostrate, diffuse : leaves small: involucres small and mostl y crowded 



near the summit of the branches. 



•I- Perennial. 



25. E. Garberi, Engelm. (ined.)- Softly villous throughout; stems 

 widely branching ; leaves oval or obovate, oblique, entire, short-petioled ; 

 stipules ciliate-laciniate ; flowers single in the upper axils ; glands narrowly 

 margined ; capsule acutely angled ; seeds reddish-brown, transversely 2- 

 ribbed. — Sandy coast, South Florida. — Stem 1° or more long. 



26. E. deltoidea, Engelm. (ined.). Stems (2' -4' long) diffuse, gla- 

 brous; leaves (1^" long or less) petioled, obliquely deltoid, cordate, or reni- 

 form, sprinkled with sliort hairs, the margins narrowly revolute ; stipules 

 minute, entire ; involucre single, terminal, turbinate, pedicelled, with downy 

 lobes, and transversely oblong glands witliout appendages ; styles very short ; 

 capsule (immature) acutely 3-angled, glabrous. — South Florida (Curtiss). 



-t- -1- Annual: smooth. 



27. E. serpyllifolia, Pers. 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, trans- 

 versely oblong ; capsule smooth, acute-angled ; seed 4-angled, granular- 

 ronghened and faintly wrinkled on the sides. — South Florida. May -Oct. — 

 Stems 6' - 1 2' long. Leaves 2" - 5" long. 



28. E. serpens, HBK. Smooth, small (4'- 8' long); leaves round- 

 ovate, entire (y-2"lone:); stipules triangular, toothed; peduncles single; 

 appendages of the gland minute or none ; capsule smooth, acutely angled ; 

 seeds smooth and even, obtusely 4-angled. — South Florida, Mississippi, and 

 westward. 



