EUPHORBIACEAE. 



215 



5. Chamaesyce hyssopifolia (L.) 

 J. K. Small. Hyssop-leaved Spurge. 

 (Fig. 238.) Annual, perhaps some- 

 times of longer duration, erect, ascend- 

 ing, or spreading, branched, V^^ tigh 

 or less, the branches very slender. 

 Leaves oblong or linear-oblong, 6"- 

 12" long, serrate, pubescent or gla- 

 brate, obtuse at both ends, inequi- 

 lateral; cymes rather loosely few- 

 flowered, filiform-peduncled; invo- 

 lucre glabrous without and within, 

 its lobes triangular, mostly entire; 

 glands very small, stalked; capsule 

 glabrous; seeds ovoid, black, their 

 faces transversely ridged. [Euphor- 

 bia hyssopifolia L.] 



Frequent in waste and cultivated 

 ground. Naturalized. Native in Florida, 

 tlie West Indies and tropical continental 

 America. Flowers from spring to 

 autumn. 



6. Chamaesyce prostrata (Ait.) J. K. 

 Small. Prostrate Spurge. (Fig. 239.) An- 

 nual, more or less pubescent, or glabrate, 

 purplish. Stems branched at the base, the 

 branches prostrate, 2'-8' long, forking, com- 

 monly very leafy; leaf-blades oval, obovate 

 or oblong, often a little broadest above the 

 middle, 2"-3" long, obtuse, sparingly serru- 

 late at the apex, oblique at the base, mani- 

 festly petioled; involucres turbinate, about 

 i"high; glands minute; appendages narrow; 

 capsules V' high, somewhat broader, pubes- 

 cent along the angles; seeds less than V' 

 long, transversely wrinkled. [Euphorbia 

 prostrata Ait.] 



Common in paths, in waste and cultivated 

 grounds. Naturalized. Native of the southern 

 T'nited States, the West Indies, continental 

 tropical America and in the Old World tropics. 

 Flowers nearly throughout the year. 



