OP AKTS AND SCIENCES. 155 



leaves opposite, sparsely glandular-dotted, narrowly lanceolate, 1 to 

 2^ inches long, pinnately divided squarely to the midvein, the seg- 

 ments (4 to 10 pairs) acute, the lowermost usually much narrower : 

 heads on slender peduncles; iuvolucral bracts 8, three lines long: 

 rays bright orange : flowers and achenes closely resembling those of 

 G. Mexicana. — On limestone ledges of mountains near Monterey ; 

 May, 1889 (n. 2524). These species are certainly congeneric with 

 C. Mexicana, though very different iu habit. 



Pectis (Pectotiumx) buacteata. Perennial, the caudex much 

 branched, with the habit of P. longipes but somewhat taller : leaves 

 very narrow (almost liliform), 1 to 3 lines long, pungent, without 

 setiB at the base and rarely with 1 or 2 lateral lobes : peduncles 

 elongated, bracteate : involucre broad, the oblong scales (10 to 15) 

 broadly thickened below: rays white: achene li lines long, very 

 finely striate and minutely tuberculate, hispidulous only at the base 

 and summit; pappus of about 15 bristles, narrowly paleaceous toward 

 the base. — On calcareous hills at Carneros Pass, Couhuila ; Septem- 

 ber, 1888 (n. 2403). 



Senecio Chapalensis. Soft-shrubby, resembling a Pelargo- 

 nium in habit : leaves thin, long-petiolate, peltate (the petiole at- 

 tached about h inch above the base), orbicular or subtriangular 

 in outline, acutely 5-7-lobed with shallow obtuse sinuses, denticu- 

 late by excurrent veinlets, puberulent both sides, 4 inches broad 

 or less : panicle puberulent, loose, the bracts lanceolate or oblan- 

 ceolate to linear ; peduncles slender, an inch long or less, straight : 

 involucral bracts 8, 3 or 4 lines long: rays 5, bright yellow; corolla- 

 lobes not half the length of the throat. — In the mountains near 

 Lake Chapala; December, 1888 (n. 2419). This species closely 

 resembles S. suhpeltatus, Schultz Bip. (Cacalia penduUflora, Gray), 

 of which it might be considered a radiate variety, but which is 

 nearly or quite glabrous, with peltate bracts, more slender pendu- 

 lous peduncles, and longer involucral scales. The corollas are the 

 same in both. 



Senecio Monteeryana. Perennial (1) with a short branching 

 rootstock, more or less densely white-floccose-tomeutose throughout ; 

 stems slender, a foot high, naked above, bearing a few (4 to 6) long- 

 peduncled heads : leaves mostly near the base, petiolate, 4 to 6 inches 

 long by an inch wide, pinnately parted into numerous cuneate to 

 oblong coarsely few-toothed lobes : involucre 3 linos long, tomentose, 

 the scales narrowly acuminate : achenes finely pubescent. — On dry 

 shaded ledges, near Monterey; June, 1888 (n. 1922). 



