618 ADDITIONS AND CORRECTIONS. 



3-cleft into narrow-entire lobes, others linear or lanceolate and entire : involucre 2 

 lines high, of about 12 obovate scales: flowers yellowish; a few of the outer ones 

 pistillate ; the rest perfect. Bot. King Exp. 180, t. 19. 



Olanche Mountain, Tulare Co., at 10,000 feet, Rothrock in Wheeler's Exped., 1875. Elsewhere 

 found only in the E. Humboldt Mountains, Nevada, IVatsori. 



Page 405. 94. ARTEMISIA. 



12. A. Rothrockii, Gray. Shrubby, a foot or less high, bushy, cinereous with 

 a minute appressed pubescence, but green or greenish, and sometimes almost gla- 

 brous, or slightly viscid : leaves from cuneate and 3 - 4-cleft above into oblong lobes 

 to cuneate-linear or spatulate and (especially on flowering shoots) entire, or some of 

 the upper linear-oblong : heads crowded, spicate-panicled, greenish, 2| to 3 lines 

 long, 10 - 12-flowered : scales of the campanulate involucre concave, rather firm; 

 the outer ovate and largely herbaceous ; the inner oblong : flowers all perfect and 

 fertile. 



Sierras of Tulare Co., Olanche Mountains and Monachay Meadows, at 8,000 to 9,300 feet. Roth- 

 rock in Wheeler's Exped., 1875. The Sage-brush of the region. Heads even thicker than those 

 of A. cana. 



13. A. Falmeri, Gray. Apparently wholly herbaceous and at least 3 feet high, 

 cinereous-puberulent : leaves narrowly linear and the lower 3 - 5-parted (the divi- 

 sions an inch or two long and a line or more wide), with revolute margins, the 

 lower surface minutely white-woolly : heads greenish, very numerous in an ample 

 open panicle : scales of the involucre ovate, thin : flowers all perfect, most of them 

 subtended by chaff similar to the inner scales of the involucre (or the innermost 

 much smaller), an anomaly in the genus. Proc. Am. Acad. xi. 79. 



Jamuel Valley, 20 miles east of south of San Diego, Palmer. 



Page 412. 101. SENECIO. 



9. S. Fremontii, Torr. & Gray. A very well-marked form of this species is 

 Var. occidentalis, Gray. Much more slender, a span to a foot high : leaves 

 from ovate-orbicular and repand to obovate or spatulate and incised, thinner, most 

 of them on rather long and wing-rnargined petioles : heads smaller (4 lines high), 

 fewer-flowered, and slender-peduncled. 



Sierra Nevada, on Mount Whitney at 12,000 feet, and S. Fork of Kern River down to 9,800 

 feet, Rothrock in Wheeler's Exped., 1875. Lemmon's plant from Lassen's Peak is between this 

 and Watson's and Parry's specimens from the mountains of Utah and Wyoming. 



Page 417. 103. RAILLARDELLA. 



A part of the generic character to be modified, and a portion of it thrown into 

 a 1, to contrast with the following : 



2. Scales of the involucre distinct to the base, the margins below at length more or 

 less involute : central floioers (always ?) sterile, both anthers and ovary imper- 

 fect : stem leafy. 



3. R. Muirii, Gray. A span or two high, slender, hirsute, and with some stalked 

 glands above : leaves (about an inch long) linear, with somewhat revolute margins, 

 acute : heads terminal and short-peduncled, and also 2 or 3 lateral ones : involucre 

 campanulate : bristles of the pappus 10 to 12, stouter, fully equalling the corolla in 

 length. 



In the Sierra Nevada (the station unknown), J. Muir. Head little over half an inch long. 

 Stem slender, very leafy below, sparsely so above. In habit unlike the genuine species of Raillar- 

 della, but the floral characters accord. The mature akenes are terete, but so they may be when 

 ripe in the original species. 



