Enogonum. POLYGONACE.E. 2o 



oblong-ovate, 3 to 12 lines long: Imicts very small, smooth or ciliate : involucres 

 minute (a tliinl of a line long or less), turbinate-campanulate, glaltrous, on very 

 slender divaricately spreading jjedicels 3 to 6 lines long : tiowers lew, half a line, 

 long, yellowish, pubescent; segments ovate-lanceolate, acute. — Emory's Jfep. 101 

 (as ii'. trichopes) ; Benth. 1. c. 20; Torr. & Gray, 1. c. 185. 



San Die^o County, <at Larken's Station near the southern boundary (Palmer) ; in the Colonulo 

 Valley, at Fort Mohave {Cooper), and eastward to S. Utah and New Mexico. 



26. E, inflatiun, Torrey. Taller, 1-^ to 2 feet high, less branched but dili'usc, 

 the stem and internoeles more elongated and usually more or less inllated, glabrous : 

 leaves rounded, | to 1| inches long, usually cordate and mostly undulate : pedicels 

 6 to 12 lines long: involucres and flowers nearly as in the last, but the latter as 

 well as the akene larger, becoming over a line long. — Fremont's Rep. 317 ; U.-nth. 

 1. c. ; Torr. & Gray, 1. c. 



Southern California, and in the dry valleys of Western Nevada and Arizona ; New Idria 

 {Brewer) ; Fort Mohave, Cooper. The other allied si)ecies, but with steins never iuHated, are 



E. SUBUENIFOIIMK, Watson, Proc. Am. Acad. xii. 260. (E. reniforme,Ton. & Gray, 1. c. 184, 

 in part.) Sparingly villous at the nodes, the round-reiiiform or -cordate leaves toinentosu bcnialh 

 and silky villous above; involucres turbinate-campanulate, glabrous, half a line long, e([Uidliiig 

 the glabrous or slightly hispid rose-colored flowers ; .segments oblong. —Arizona and S. Utah. 



E. GoRDONi, Benth. 1. c. 20. Glabrous throughout or the petioles only slightly villous , 

 flowers glabrous, light rose-colored, a line long, the outer segments ovate, the inner oblong ; 

 involucres as in the last. — Colorado. 



E. GLANDULOSUM, Nutt. Beset with short stipitate glands ; leaves somewhat villous, obovate, 

 small ; involucres glabrous, turbinate-campanulate, half a line long ; flowers slightly hispid, 

 nearly a line long, the segments oblong-ovate, acutish. — Probably in Colorado or New Afexico. 



E. sc.\LARE, Watson, Proc. Am. Acad. xii. 261. Slender and gluljrous, the branches and 

 branchlets opposite or alternate (sometimes in threes), divaricate or ascending ; bracts distin<-t, 

 linear, acute, 1 or 2 lines long, spreading or reflexed, on the branchlets smaller and erect : peili- 

 cels scattered on the branchlets, 1 or 2 lines long, ascending, filiform : involucres narrowly turbi- 

 nate, two thirds of a line long, glabrous; bracteoles spatulate, naked: flowers slightly pube.scent, 

 a line long ; segments oblong, the inner a little narrower. — Canvas Point, coast of Lower Cali- 

 fornia (Streets) ; known only from imperfect specimens. 



% * Leaves commonhj developed at the nodes, in the axils of ordinary trianrjular 

 bracts. — (§ Pseudo-stipulata, Torr. & Gray.) 



27. E. angulosum, Benth. More or less floccose-toraentose, 3 to 15 inches 

 higli, diffusely Ijrancliing from near the base, the branches mostly 4 - 6-angled : 

 radical leaves orbicular to oblong-ovate, somewhat cordate or cuneate at base, ol)tnse 

 and often undulate, ^ to 1 inch long, on rather short petioles; upper leaves oblong 

 to lanceolate or oblanceolate, sessile or nearly so : involucres on filiform pedicels 3 

 to 15 lines long and mostly in the forks or terminal, hemispherical, a line or two 

 broad, many-flowered, smooth or minutely glandular : bractlets mostly firm and 

 dilated: flowers rose-colored or greenish, half a line long, nearly glabrous ; outer 

 segments ovate, concave, the inner longer, lanceolate. — Linn. Trans, xvii. 40G, 

 t. 18, f. 1 ; DC. Prodr. xiv. 22 ; Torr. & Gray, 1. c. 187. 



From the Lower Sacramento and Northern Nevada to Arizona and S. Utah ; fre^iuent in dry 

 valleys and canons. 



§ 3. Involurres (n/lindrir-tvrhinate or lyrismatic, more or less .sfro)i;/l>/ 5-(J-urrn'd 

 and 'With as mami s/ioH erect teeth, often becominrf rostote or atifjled, rather 

 large (1 to .'! /ii/es lourj), sessile {or rarely some of them peduncidate), in 

 heads or clusters or scattered in cymes or along virgate jmnirled l>ronrhc.'< 

 always erect : bracts ternate, connate at base, usually short and acute and 

 more or less riff id, sometimes more or le^s folia rcoiis : perianth more abruptly 

 contracted to the base. Perenniah, sometimes woody and leafy. w,th some 

 annuals or bienniah, more or less white-tomentose : ovary and Jilamcnts 

 mostly glahrna.^. — Okkgonhjm, Watson. 



