Part 3, 1916] CARDUACEAE: ANTHEMIDEAE 265 
45. Artemisia Cooleyae Rydberg, sp. nov. 
A perennial; stems 3 dm. high or more, angled, glabrous; basal leaves 2-3 dm. long, long- 
petioled, twice or thrice pinnatifid into narrowly linear-lanceolate attenuate divisions, green 
and glabrous on both sides; those of the stem similar, smaller, short-petioled, less divided with 
narrower segments; inflorescence paniculate; heads nodding, on slender peduncles 1-5 cm. 
long; involucre hemispheric, about 5 mm. high, 5-6 mm. broad; bracts about 12, glabrous, 
oval, obtuse or rounded at the apex, greenish with broad brown scarious margins; ray-flowers 
6-10; corollas cylindric, 2 mm. long, 3-toothed at the apex, slightly glandular-granuliferous; 
disk-flowers about 25; corollas 2.5 mm. long, elongate-funnelform, slightly glandular-granu- 
liferous, usually sparingly hairy below; achenes 1 mm. long. 
Type collected above Silver Bow Basin, Juneau, Alaska, August 6, 1891, Grace E. Cooley (herb. 
Geol. Surv. Canada). 
IX. Franserioides. Herbaceous perennials, with creeping rootstocks. Leaves (the lower 
slender-petioled) bipinnatifid into 5—9 elliptic or obovate primary and oblong obtuse secondary 
divisions, green above, white-tomentulose beneath. Heads rather few, nodding, in a lax narrow 
panicle, 60—100-flowered. Corollas conspicuously glandular-granuliferous, those of the ray- 
flowers 2-toothed, subcylindric, tapering upwards, those of the disk-flowers 5-toothed and 
elongate-campanulate. Style of the former short-exserted, of the latter included. 
46. Artemisia franserioides Greene, Bull. Torrey Club 10: 42. 
1883. 
Artemisia discolor 'T. & G. Pacif. R. R. Rep. 2: 127. 1855. 
A herbaceous perennial, with a creeping rootstock; stem 3-10 dm. high, simple, glabrous, 
striate, usually purplish; leaves, except those of the inflorescence, petioled, bipinnately divided, 
ovate or obovate in outline, light-green and glabrous or sparingly puberulent above, very 
finely grayish-tomentulose beneath, 5-20 cm. long; primary divisions 5-9, elliptic to obovate 
in outline, the secondary ones oblong, obtuse; heads nodding, in a lax but narrow panicle; 
peduncles 1-3 mm. long; involucre hemispheric, 3-4 mm. high, 6-7 mm. broad; bracts about 
12, in 2 series, elliptic or oval, rounded and erose at the apex, scarious-margined, finely tomentu- 
lose, the outer ones only slightly shorter; ray-flowers 5-12; corollas 1.5 mm. long; disk-flowers 
60-90; corollas 2 mm. long; achenes 1.5 mm. long. 
TYPE LOCALITY: Pifios Altos Mountains, New Mexico. 
DistrisuTion: Colorado to Arizona and Chihuahua. 
X. Vulgares. Perennial herbs, mostly with rootstocks, rarely somewhat woody at the 
base. Leaves subsessile, or the lower short-petioled, entire or more or less lobed, or divided, 
glabrate above, white-tomentose beneath, the lobes acute. Heads in most species numerous 
and small, in dense leafy panicles, or rarely fewer and larger, in laxer panicles or in spicate or 
racemose inflorescences; involucre in the former case campanulate, in the latter more hemi- 
spheric. Corollas glandular-granuliferous, in the ray-flowers subcylindric, tapering upwards, 
2-toothed, in the disk-flowers 5-toothed, trumpet-shaped or somewhat funnelform. Style of 
the former long-exserted, with linear-filiform divisions, and of the latter included or scarcely 
exserted, with recurved branches, truncate and erose at the apex. 
47. Artemisia vulgaris L. Sp. Pl. 848. 1753. 
Artemisia indica canadensis Besser; Hook. Fl. Bor. Am. 1: 323. 1833. 
Absinthium vulgare Dulac, FI. Hautes-Pyr. 502. 1867. 
A stout perennial, with a rootstock; stem 5-15 dm. high, sparingly tomentose when young, 
striate, often purplish; lower and middle leaves ovate in outline, pinnately or bipinnately 
divided to near the midrib, green and glabrate above, white-tomentose beneath, 5-10 cm. 
long; primary divisions 5—7, obovate, oblong or oblanceolate, acute, the ultimate lanceolate, 
often few-toothed; upper leaves pinnatifid with lanceolate or linear divisions, or those of the 
inflorescences simple; heads very numerous, at first nodding, soon erect, narrow, in a leafy 
