280 NORTH AMERICAN FLORA [VoLuME 34 
101. Artemisia Pringlei Greenman, Proc. Am. Acad. 40: 50. 1904. 
A herb, described as annual or biennial (?), but probably perennial; stems several from 
the base, 4-8 dm. high, sparingly villous-tomentose; lower leaves 2-6 cm. long, pinnatifid and 
tomentose on both sides, but less so above; heads numerous in a narrow racemiform panicle, 
nodding; involucre hemispheric, 3-4 mm. high, 4-5 mm. broad; bracts 12-15, in 3 series, tomen- 
tose, the outer ovate, acute, only slightly shorter than the innermost; inner bracts oval, obtuse 
or rounded, broadly scarious on the margins; ray-flowers 10-15; corollas 1.5 mm. long; disk- 
flowers 10-25; corollas narrowly funnelform, fully 2 mm. long. 
TYPE Loca.Lity: Plains near city of Chihuahua. 
DISTRIBUTION: Chihuahua. 
102. Artemisia Carruthii Wood; Carruth, Trans. Kans. Acad. 
Sei. os ole L877, 
Artemisia kansana Britton; Britt. & Brown, Ill. Fl. 3: 466. 1898. 
Artemisia coloradensis Osterhout, Bull. Torrey Club 27: 506. 1900. 
A perennial, with a cespitose rootstock; stems branched near the woody base, white- 
tomentose, 2-5 dm. high; leaves 2-5 cm. long, pinnatifid into 3-7 filiform or linear, revolute, 
spreading divisions, or the upper entire, white-tomentose on both sides; heads numerous in a 
leafy panicle; involucre campanulate, 2.5-3 mm. high, 2 mm. broad; bracts 10-12, in 3 series, 
white-tomentose, the outer lanceolate, half as long as the innermost; inner bracts oval, obtuse; 
ray-flowers 6-8; corollas 1.5 mm. long; disk-flowers 4-8; corollas nearly 2 mm. long; achenes 
1mm. long. (A. coloradensis is a form with somewhat broader leaf-segments.) 
TYPE LOCALITY: Kansas. 
DISTRIBUTION: Missouri to Colorado, Arizona, and Texas. 
ILLUSTRATIONS: Britt. & Brown, Ill. Fl. f. 4012; ed. 2. f. 4585. 
XV. Ponticae. Shrubby or at least suffrutescent perennials. Leaves twice pinnatifid 
into linear narrow divisions more or less tomentose at least beneath. Heads small, numerous 
in leafy panicles. Involucre hemispheric. Corollas glandular-granuliferous or glandular- 
puberulent; those of the ray-flowers short, cylindric, 3—4-toothed; those of the disk-flowers 
campanulate or funnelform, 5-toothed. Style of the ray-flowers short-exserted, with oblong 
branches, that of the disk-flowers included or equaling the corolla, with short recurved branches 
truncate and erose at the apex. 
103. Artemisia Abrotanum L,. Sp. Pl. 845. 1753. 
A much branched shrub, 5-10 dm. high; lower leaves petioled, 4-6 cm. long, twice pin- 
nately dissected into linear-filiform divisions, with revolute margins, green, finely puberulent 
or glabrous above, slightly tomentose beneath; leaves of the inflorescence merely 3-cleft, or 
simple and linear; heads numerous, nodding, in leafy panicles with racemiform branches; 
involucre hemispheric, about 3 mm. high and 5 mm. broad; bracts about 15, in 3 series, can- 
escent, arachnoid, those of the outer series linear-lanceolate, nearly as long as the inner ones, 
the rest equal in length, broadly oval, scarious; ray-flowers about 10; corollas 1.5 mm. long; 
disk-flowers 15-20; corollas campanulate, nearly 2 mm. long; achenes 1 mm. long, glabrous. 
TYPE LOCALITY: Syria. 
DISTRIBUTION: Cultivated and sparingly established, New Brunswick to Massachusetts, 
North Carolina, Colorado, and Nebraska; native of southern Europe and the Orient. 
ILLUSTRATIONS: Fl. Deuts. ed. 5. pl. 3006; Hayne, Arzn. Gew. 11: pl. 22; Woodv. Med. Bot. 
pl. 21; Reichenb. Ic. Fl. Germ. 16: pl. 1041, f. II; Britt. & Brown, Ill. Fl. f. 4006; ed. 2. f. 4579. 
104. Artemisia pontica L. Sp. Pl. 847. 1753. 
Absinthium ponticum Besser, Enum. Pl. Volh. 76. 1822. 
A suffruticose perennial, about 5 dm. high, with creeping rootstock; stems canescent- 
tomentulose; leaves 1-3 cm. long, twice pinnatifid into linear short divisions, grayish-tomentu- 
lose on both sides, the lower petioled, the upper sessile; heads numerous, nodding, in leafy 
