Krwijonnm. rOLYGONACE.K. o- 



ol.Ioiig-oyato 3 to 12 linos long: bracts very small, smooth or ciliate : involucres 

 minute (a tlurd of a line long or less), turbinate-campanulatp, glabrous on very 

 slender divaricately spreading pedicels 3 to G lines long : llowers few, half a lino 

 long, yellowish, pubescent; segments ovate-lanceolate, acute. — Emory's Ifep 151 

 (as E. trichopcs); Bcnth. 1. c. 20; Torn & Gray, 1. c. 185. 



V ''ir" ^^'f"r ?m'V'' ■'*S';r''^«V '"^'"Z'"" '"'''■ ^''^ souti.ern Lonndary {Palmer) ■ iu the Colorado 

 \ alley, at I'ort Moliavo {Cooper), and eastward to S. Utah and New Mexico. 



26. R inilatum, T.n-rey. Taller, li to 2 feet high, less branched but dilfuse 

 the stem and inteniodes more elongated and usually more or less iiillutod, "labrous • 

 leaves rounded, h to 1^ inches long, usually cordate and m.jstly undulate T pedicels 

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

 well as the akene larger, becoming over a line long. — Fremont's IJep. 317 ; Benth. 

 1. c. ; Torr. & ( Jray, 1. c. 



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

 {lirenxr) ; I'ort Moiiave, Cooper. The other allied si>ccies, Ixit with steins never inflated, are 



E. suBKKN-rFouMK, Watson, Proc. Am. Acad. xii. 260. {E. rnu/omc, Torr. & Gray 1 c 184 

 in part ) Sparingly villous at the nodes, the ronnd-ieniforin or -cordate leaves toinentose beneath 

 and silUy villous a. ove ; invohu-rcs turhinate-campanulate, glabrous, half a line long, e.nmllinc 

 the glabrous or slightly liispid lose-coloied (lowers ; segments oblong. — Arizona and S. Utah. 



E. GOUDONI, Henth. 1. c. 20. Glabrous throughout or the i.etioles only slightly villous • 

 (lowers glabrous, light rose-colored, a Hue long, the outer segments ovate, the inner oblonz •' 

 nivolucres as in the last. — Colorado. * * 



E. GLANniTi.osu.M, Nutt. Beset with short stipitate glands ; leaves .somewhat villous, obovate 

 .small ; involucres glabrous, turbiuate-campanulate, half a line long ; flowers slifhtly hispid' 

 nearly a line long, the .segments oblong-ovate, acutish. — Probably in Colorado or N^ew Mexico. ' 



E. scAi.AitK, Watson, Proc. Am. Acad. xii. 261. Slender and glabrous, the branches and 

 hmnchlets opposite or alternate (sometimes in three.s), divaricate or ascending; bracts distinct, 

 linear, acute, 1 or 2 lines long, spreading or reflcxed, on the brnnchlets .smaller and erect : pedi- 

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

 nate, two thirds of a line long, glabrous; Inacteoles spatulatc, naked : llowers slightly pui)eseent, 

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

 loriiia {Slrce(s) ; known only from inipcrfect specimens. 



* * Leaue^ common/// developed at the nodes, in the axih of ordinary triangular 

 bracts. — (§ Pskuoo-stipulata, Torr. & (Jray.) 

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

 high, dillusely branchiiig from near the ba.se, the branches mostly 4 - 6-angled : 

 radical leaves orbicular to oblong-ovate, somewhat cordate or cuneate at base, obtuse 

 and often niululate, J to 1 inch long, on rather short petioles; upper leaves oblong 

 to lanceolate or oblanceolate, sessile or nearly so : involucres on liliforin 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. 406, 

 t. 18, f. 1 ; DC. Prixlr. xiv. 22 ; Torr. <t Gray, I. c. 187. 



From the bower Sacramento nml Northern Nevada to Arizona and S. Utah ; freiiuent in dry 

 valleys and cafions. 



§ 3. Involucres ci/lifidrir-tKrhlnafe or prismatic, more or less s/rom/li/ B - G-ncrrcd 

 and ivith as many short erect teeth, often berominy rosfate or angled, rather 

 large (1 to 3 lines long), sessile (or rarely some of them pedunrulate), in 

 heads or chisters or scattered in cymes or along virgate panicled branches, 

 always erect : bracts tcrnate, connate at base, nsually short and acute and 

 more or less rigid, sometimes more or less foliaceous : j^crianth more abruptly 

 contracted to the base. Vcrennials, sometimes troody and leafy, vifh some 

 annuals or biennials, more or less irhite-tomentose : ovary and filaments 

 mostly glabrous. — OREGOXiu>r, Watson. 



