•^4 EUPIIOHBIACE.-E. Kuphorhm. 



rather obtusely angled, suvroundeil hy 4 deep transverse grooves. — Bot. I\Iex. 

 Bound. 18G ; Boiss. 1. c. 48. 



Big Caiion of tlie Taiitillas Jlouiitaiiis (Pnhncr), and tliioiigli Arizona {Srliolf, Pahncr, Roth- 

 rock) to New Mexico, Jl'right. 



-I— -H- Animals: leaves serrulate. 



6. E. serpyllifolia, Persoon. (ilabrous : stems prustnite or ascending, be- 

 connn<' a half tu one loot long : leaves obovate to narrowly oblong, often narrowed 

 toward the very oblicjue base, denticulate (sometimes obscurely) at the rounded or 

 refuse summit, 2 to C lines long ; stipules distinct, setaceous or lacerate : involucres 

 solitary or in loose leafy clusters, campanulato, \ line long or less ; glanils small, the, 

 narrow Avhitish margin crenate or entire : capsule angled, a line long : seeds sharply 

 4-angled, the sides somewhat rugose and slightly pitted or sometimes nearly smooth. 

 — Boiss. 1. c. 4;5. K. iu(i(2uila(era, luv^i'.hii. in Bot. I^lex. JJound. 187. 



A coniiiion speities, esjiecialiy in the Great Basin, ran<,'inj,' from the Columbia Kiver to Mont, ivv, 

 eastwanl to the Saskateiiewan and southward to Iowa, Texas and Me.xieo. 



E. GLYPTOSPEKMA, Engehu. (Bot. Mex. Bound. 187), is a simihir .species, distinguished by its 

 decidedly semieordate (tlie lower side produced) sharply serrulate leaves, and its .seeds with i or 5 

 sharp transverse ridges and notched angles. It occurs on the Columbia Itiver and eastward to 

 Wisconsin, but has not been found ia California or Nevada. 



7. E. hirtula, Engelm. ined. Villous with soft spreading hairs, prostrate or 

 ascending, the stems 3 or 4 inches long : leaves very oblique, round-oval or oljovate 

 to broadly oblong, serrulate toward the rounded ajiex, 2 or 3 lines long ; stipules 

 distinct, limbriate-.setaceous : involucres solitary or in leafy cluster.s, deeply campan- 

 ulate, about eipialling the pedicels ; glands minute, with a narrow crenate margin : 

 capsules somewhat villous, angled, a line long : seeds broadly ovate, 4-angled, 

 irregularly and rather faintly wrinkled or i)itted. 



Near San Diego (Chvchmd) ; at Talley's in the Cuyamaca Mountains, Palma: Nearly "allied 

 to E. slidospiira and E. vrlluicra" (Engelmann) ; distinguished .hielly by the narrower and more 

 incised stipules, and by the thicker smoother and lighter colored seeds. 



§ 2. Shruhs, with scattered leaves, entire and not ohUqiie at base, on slender peti- 

 oles : (/lands 5 : seeds ovate. — 'ruiciiEiKJSTiGMA, Boiss. 



8. E. misera, Benth. A much branched straggling shrub, 2 or 3 feet high : 

 young branches pubescent : leijves minutely puberulent or glabrate, solitary or few 

 upon the short branchlets, round-obovate, obtuse or refuse, mostly cuneate at base, 

 2 to 6 lines long, exceeding tlie petioles ; stipules limbriate : involucres hemispherical, 

 solitary and terminal, a line long ; lobes short, inflexed ; glands purple, with a 

 white crenulate margin : capsules 2 lines long, with rounded lobes, somewhat warty : 

 seeds round-ovate, reticulate-wrinkled or ob.scurely pitted, 1^ lines long. — Bot. 

 Sulph. 51 ; Boi.ss. 1. c. G9. 



Southern California, from Santa Barbaia to San Piego, near tlie sea. Hinds, NulluU, Cleveland. 



II. Glands of the {nvoluere without a colored margin, entire or dentindate or eves- 

 cent-siiaped. — The following sections have scattered {rarely opposite) leaves, 

 those of the terminal cgmose-coriimhose inforescence opposite or vcrtieiUatc : 

 our species erect or ascending, licrhareous. 



§3. Glands ciip-shapcd (in ours cleft on the inner side) : involucres in terminal 

 clusters: stipules ghuid-Uke, minute. — roiNSK'rriA, Boiss. 

 9. E. eriantha, Benth. Stems herbaceous and slender, ascending from a woody 

 apparently perennial base, branching, nearly a foot high, glabrous : leaves scattered 

 and distant, narrowly linear, acute or obtuse and mucronate, often 3-toothed at the 

 apex, atteni'iate to a i^iort petiole, sparingly pubescent, entire, an inch or two long ; 

 the floral ones similar, opposite, much exceeding the flower.s : invohicres 1 to 3 at 



