L098 ACHILLEA. [CLASS XIX, ORDER II. 
Root fibrous, and with long creeping reddish slender underground 
stems. Stem erect, from one to two feet high, angular, or round, 
striated, more or less clothed with loose silky pubescence, simple, or 
slightly branched. Leaves numerous, linear lanceolate in their 
outline, the radical ones petiolated, the rest sessile, more or less 
clothed with soft silky pubescence, sometimes nearly smooth, bi- 
pinnatifid, the segments narrow, linear, or ovate lanceolate, bristle 
pointed, more or less toothed. Jnflorescence a terminal compound 
crowded many flowered corymb. lowers white, pale, flesh coloured, 
or pink. Florets of the ray with a broad roundish ovate spreading 
toothed limb, those of the disk tubular, five-cleft. Involuere hemi- 
spherical, the scales ovate oblong, keeled at the back, and fringed on 
the margin with a narrow brown border. Receptacle flat, its scales 
lanceolate, membranous. 
Habitat.— Meadows and pastures; abundant. 
Perennial ; flowering all summer. 
The segments of the leaves are very variable in their width, and as 
well asthe whole plant in being more or less clothed witha silky 
pubescence. The whole plant is astringent, and is used by the High- 
landers of Scotland to make an ointment, which they say is very 
useful in drying up and healing old ulcers, wounds, &e. Its infusion 
also has been recommended in various diseases where astringents are 
indicated as being needed; but it has never obtained general use. 
Linneus says that in the mining provinces of Sweden they infuse it 
in their beer during the fermentation, to increase its intoxicating 
effects. 
3. A. Ptar'mica, Linn. (Fig. 1310.) Sneeze-wort Yarrow. Leaves 
sessile, linear lanceolate, acuminate, sharply serrated, often cut at the 
base ; flowers white. 
English Botany, t. 757.—English Flora, vol. ii. p. 461.—Hooker, 
British Flora, ed. 4. vol. i. p. 309.—Lindley, Synopsis, p. 151. 
B. serrata. (Fig. 1311) Leaves more deeply serrated, laciniated at 
the base; flowers buff coloured. 
Hooker, British Flora, ed. 4. vol. i. p. 309.—A. serrata.—English 
Botany, t. 2531.—English Flora, vol. iii. p. 462.—Lindley, Synopsis, 
p- 151. 
Root fibrous, and with creeping underground stems. Stem erect, 
about two feet high, somewhat angular, striated, smooth, or clothed 
with fine close down, leafy, and more or less branched. Leaves al 
sessile, linear lanceolate, acute, closely minutely and regularly ser- 
rated with acute bristle pointed teeth, at the base they are sometimes 
deeply cut and minutely serrated. Inflorescence compound corymb of 
numerous crowded flowers, small. Jnvolucre downy, the scales 
lanceolate, keeled, the margin with a narrow brown membranous 
margin, imbricated. Florets numerous, white, gr buff, these of the 
ray with a broad ovate spreading obtusely toothed limb, those of the 
