22 rOLYGONACE.-E. Erlogonnm. 



==== = Peduncle leafij-hracteate hi the middle, heai'iixj a soUtdry involucre. 



13. E. Kelloggii, Gray. Low ami very sleiuler, villous tomentose : leaves ob- 

 lanceolate, '1 to 4 lines long, scarcely petiolate : peduncles 2 to 4 inches higli, with 

 a central whorl of 3 to 5 foliaceous bracts and bearing a single naked rather large 

 strongly-toothed involucre (2 lines long) : flowers rose-colored or -whitish, li to 2^ 

 lines long. — Proc Am. Acad. viii. 293. 



Ill fir-woods on Red Mountain, Mendocino County, Kellogg k Harford. 



* * Involucres nncf/Udlli/ A-lohed, viosfl// small, pedicellate in di- or tric/iototnous 

 cymes or panicles {or sometimes sessile in the forks) : perianth not long-atten- 

 uate at base. Mostly leafy anmials : filaments and ovary ylabrous. — 

 (§ FoLiosA, IJenth.) 



14. E. spergulinum, Gray. Very slender, 3 inches to 2 feet high, ditfusely 

 brancheil usually from the base, slightly glandular-hispid or nearly glabrous : lower 

 leaves scattered near the base, thin, linearoblanceolate, i to 2 inches long, more 

 or less hirsute, the margin somewhat revolute ; bracts similar : pedicels very slen- 

 der, 3 to 6 lines long, spreading : involucres turbinate, \ line long, deeply 4-cleft, 

 glabrous, 1 - 2-tlowered : bractlets none : llowers exserted, rose-colored, \ to 1 line 

 long, slightly glandular-puberulent at base ; segments cuneate-oblong, the outer 

 obtuse or retuse, the inner erosely 3-toothed : akene obovoid or lenticular. — Proc. 

 Am. Acad. vii. 389 ; Torr. & Gray, 1. c. 189. 



In the Sierra Nevada at G,000 to 10,000 feet altitude, frequent, from Sierra County (Lcnnnon) to 

 Tulare County, Rolhrork. 



15. E. hirtiflorum, f!ray. Diffusely branched, 6 inches high or less, somewliat 

 glandular-puberulent and viscid : bracts his|)id, oblong, 3 lines long or less, acutish : 

 involucres turbinate, half a line long or less, 4-parted, on slender erect or nodding 

 pedicels I to 3 lines long, or in the forks often nearly sessile : flowers 3 to 5, very 

 liirsnte, yellowish tinged with red, \ lino long ; segments oblong, obtuse : akene 

 triangular, exserted. — Watson, Proc. Am. Acail. xii. 259. 



Collected by Dr. Gray, in 1872, and by Hooker k. Gnnj in 1877, in Tuolumne County, at 

 2,500 to 5,000 feet altitude. 



E. piiARNACF.oinEs, Torrey in Sitgreaves, Rep. 167, t. 11. Tall and hoary-tomentose, leafy 

 and rather sparingly branched : leaves lincar-oblanceolate, smoother above, with revolute margin, 

 an inch long or more : involucres on elong.ated jiedicels, turbinate, deeply 6-8-cleft, 1 to 1^ lines 

 long, 8-12-flowered : flowers glalirous, whitisli, aline long; onter segments ovate, at length 

 bigibbons at base, the inner linear-oblong, retuse. — Fort Whijiple, Arizona {Palmer), and east- 

 ward to New Mexico. 



E. ABEUTiANUif, Ton-ey, and E. vili.ifi.oiium, Cray, may also i)erhaps be found on the south- 

 eastern borders of the State, both villous species with deeply cleft involucres. The ^il^t an erect 

 branching annual, with ovate or subcordate leaves, the upper lanceolate or linear ; invohnres 

 4-8-cleft, 1^ lines long, scattered along the branches; flowers rose-colored, glabrous, the outer 

 segments round-cordate, becoming 2 lines long, the inner linear-oblong : E. Arizona and New 

 Jlexico. The second is a dwarf cespitose ])erennial, with small oblanceolate leaves crowded on the 

 very short branches of the thick caudex, and each branch terminated by a slender peduncle (an 

 inch long) bearing a loose cymose head ; involucres 6-cleft, 2 lines long: flowers silky within and 

 without, aline long, 6-cleft to the middle; the lobes oblong and nearly ecjnal : S. Utah, Siler, 

 Parnj. 



§ 2. Involucres mostly campanulate or s/iorf-turhinate, s)nall, not (Dujlcd and very 

 rarely obscurely nerved, with 5 rounded erect often niembcanously mar- 

 gined teeth, pedicellate in diffuse repeatedly di- or tricliotomous cymose 

 umbels or panicles, visually more or less dc/ie.red or spreading : bracts ter- 

 nate, not foliaceous, small and mostly triangular and rigid : 2jerianth not 

 attenuate at base. Slender annuals (the Californian species), with radical 

 and rounded leaves: inflorescence and involucres usually glabrous : fila- 

 ments and ovaries glabrous. — Gaxvsma, Watson. 



