146 POLYGONEyE, 



oblauceolate, 2 — 4 lines long, subsessile, villous-tomentose : peduncles 

 2 — 4 in. high, with a central whorl of 3 — 5 foliaceous bracts and a 

 solitary terminal naked strongly toothed involucre 2 lines long : fl. rose- 

 colored or white, l}^ — '^^■i lines long. In fir-woods on Eed Mountain, 

 Mendocino Co., Kellogg A Harfurd. 



* * Involucres cylindric-turhitiale or prisriiatic, 5 — 6-nerred, with erect 



teeth, in heads or cymosely or virgately scattered on the branches; 



perianth abruptly contracted at base; filaments usually 



glabrous. — Subgenus Oregonium, Wats. 



-i— Perennials with scape-like peduncles. 



15. E. gracilipes, Wats. Proc. Am. Acad. xxiv. 85 (1889). Dwarf, 

 densely cespitose, the branches of the caudex bearing crowded oblauceo- 

 late tomentose leaves % in. long or less: peduncles slender, 1 — 2 in. high, 

 glandular-puberulent : involucres turbinate, tomentose, few, forming a 

 solitary terminal head : fl. glabrous, rose-colored. — On the White Moun- 

 tains, Mono Co., at the highest altitudes (13,000 ft.), W. H. Shockley. 



16. E. ovalifolium, Niitt. Journ. Philad. Acad. vii. 50. t. § (1834) ; PL 

 Gamb. 166 (1848), under Eucycla. Cespitose, densely white-tomentose : 

 leaves broadly oval or oblong, acutish, 2 — 6 lines broad, abruptly 

 narrowed to a long slender petiole : peduncles slender, 3—9 in. high : 

 involucres 3—8, in a close head, 2 — 2^2 lines long : fl. yellow, white or 

 rose-red, 1% — 2^4, lines long, the outer sepals almost orbicular, the inner 

 spatulate, obtuse or retuse. Var. proliferuiii, Wats,: E. proliferum, 

 T. & G. 1. c. Larger than the type, the involucres loosely cymose- 

 umbellate. — Mostly along the eastern foot-hills of the Sierra, and east- 

 ward. The variety is one of the handsomest plants of the genus. 



17. E. Kenuedyi, Porter, Proc. Am. Acad. xii. 263 (1877). Densely 

 cespitose but scarcely woody, white-tomentose : leaves narrowly oblong, 

 1}^ — 3 lines long, revolute : peduncles glabrous, slender and wiry, 2 — 4 

 in. high : involucres 2 — 10, in a dense head, somewhat tomentose, 1^2 

 lines long, strongly nerved, the teeth short : fl. glabrous, white Mdth red 

 veins, IJg lines long, the sepals all alike.— Obtained somewhere in Kern 

 Co., W. L. Kennedy, 1876. 



18. E. latifoliuiii, Smith, in Bees Cycl. (1815) : E. arachnoideum, 

 Esch. (1826). Stout, tomentose throughout, the short caudex sparingly 

 branched and leafy : leaves oblong or oval, obtuse or acute, 1 — 2 in. 

 long, rounded or cordate, or rarely cuneate at base, commonly undulate, 

 often glabrate above, 1 — 2 in. long, the stoutish petiole often short and 

 margined : peduncles stout, 6 — 20 in. high : bracts triangular : invo- 

 lucres very-many-flowered, crowded in 1 — 3 large terminal heads, or the 

 peduncles more than once forked above and the heads smaller : bractlets 

 densely villous-plumose : fl. white, the sepals broadly obovate. — In 



