214 



EUPHORBIACEAE. 



3. Chamaesyce Preslii (Guss.) 

 Arthur. LARGE OR UPRIGHT SPOTTED 

 SPURGE. (Fig. 236.) Stem 8 '-2 

 high, the branches mostly spreading; 

 leaves opposite, oblong, or linear-ob- 

 long, varying to ovate or obovate, 

 often falcate, oblique, 3-nerved, un- 

 equally serrate, often with a red 

 blotch and red margins; involucres 

 narrowly obovoid, \" long, bearing 

 4 glands subtended by orbicular or 

 reniform white or red appendages; 

 capsule glabrous, 1" in diameter; 

 seeds oblong-ovoid, black, 4-angled, 

 with broken transverse ridges. [Eu- 

 phorbia Preslii Guss.] 



Roadsides, Walsingham, 1912. Nat- 

 uralized. Native of continental North 

 America. Flowers in autumn. [ 1Eu- 

 phorbia liypcriclfolia hirsutu of Reade.J 



4. Chamaesyce hypericifolia (L.) Millsp. 

 HYPERICUM-LEAVED SPURGE. (Fig. 237.) An- 

 nual, branched, erect, 2 high or less. Leaves ob- 

 long or oblong-lanceolate, 7"-15" long, obtuse at 

 the apex, oblique at the base, sharply serrate 

 above the middle, glabrous or somewhat pubes- 

 cent; stipules ovate, dentate; cymes peduncled 

 in the axils, rather densely flowered; involucre 

 turbinate, glabrous without, its lobes triangular- 

 lanceolate, lacerate; glands roundish; appendages 

 white, nearly orbicular; capsule glabrous, its 

 lobes keeled; seeds red, ovoid, their faces trans- 

 versely rugose. [Ettphorbia hypericifolia L.] 



Common in waste and cultivated ground. Nat- 

 uralized. Native in the southern United States, 

 West Indies and continental tropical America. 

 Flowers nearly throughout the year. This is one of 

 the abundant weeds of cultivation, neglected fields 

 sometimes being overrun by it. 



