214 EUPHORBIACEAE. 



capsule 3 mm. broad; seed round-ovate, acute, 2 mm. long, smooth 

 somewhat viscid. 



Occasional about San Bernardino and eastward in dry barren 

 places, and in similar places about San Diego. 



5. CHAMAESYCE S. F. Gray. 

 Annual or perennial herbs, with opposite entire or 

 toothed leaves, and delicate entire or fringed stipules. 

 Involucres solitary In the axils or In axillary cymes; 

 glands 4, sessile or stalked, naked or usually with an 

 appendage, one sinus of each Involucre glandless. Cap- 

 sule smooth, sometimes pubescent, the angles sharp or 

 rounded; seeds angled, with minute caruncles. {Eu- 

 phorbia In part.) 



Leaves entire. 



Margins of the glands conspicuous, white. 

 Herbage green and glabrous, or some- 

 what finely pubescent. 

 Stipules united into a conspicuous 

 membranous scale, entire or lac- 

 erate. 1. C. alhomarginata. 

 Stipules distinct, minute, ciliate. 2. C. polycarpa. 

 Herbage cinereous with a dense soft 



pubescence. 3. C. melanadenia. 



Margins of glands without white appen- 

 dages. 4. C. ocellata. 

 Leaves serrulate. 



Stems prostrate. ^ 5. C serpyllifolia. 



Stems erect or ascending. 6. C. nutans. 



\. C. alhomarginata (T. & G.) Small. Glabrous; stems numerous 

 from a woody perennial base, prostrate or decumbent, 5-30 cm. 

 long; leaves nearly orbicular, 4-8 mm. broad, often retuse above 

 and somewhat cordate at base, with a thin whitish edge; stipules 

 united into a conspicuous membranous white triangular scale, 

 entire or somewhat lacerate; involucres mostly solitary, campanu- 

 late or turbinate, about 1.5 mm. long; glands maroon color with a 

 conspicuous entire white or rose-colored dilated appendage; capsule 

 about 2 mm. long, the lobes angled on the back; seeds oblong, 

 4-angled. 



Common and general. Flowering all summer. 



2. C. polycarpa (Benth.) Millsp. Glabrous or somewhat finely 

 pubescent; stems numerous from a perennial woody base, prostrate 

 or decumbent, 5-30 cm. long; leaves round-ovate, obtuse, usually 

 slightly cordate, 2-6 mm. long; stipules minute, short-triangular to 

 lanceolate, ciliate, distinct; involucres mostly solitary, about 1 mm. 

 long; glands mostly dark purple, the white or rose-colored some- 

 what crenate margins often very narrow; capsule small with angled 

 lobes; seeds oblong, 4-angled, about 1 mm. long. 



Occasional in the foothills, especially in the Santa Ana Mountains, 

 more common southward. 



