SVNGENESIA SUPERFLUA. 
'405 
1- COTCLA. 
A. receptaculis coni- 
cis, paleis setaceis; se- 
minibus nudi&, foliis 
bipinnatis, foliolis sub- 
ulatis tripartitis. 
Receptacle conic; 
chaff setaceous; seed 
naked; leaves bipin- 
nate, leaflets subulate, 
three-parted. 
Sp. pi. 3. p. 2181. Walt. p. 211. Nutt. 2. p. 171. 
Root annual. Stem one to two feet high, erect, slightly angled, pubes- 
cent, with the segments linear, acute* Flowers in terminal corymbs. In - 
volucrum many leaved. Leaves narrow lanceolate, pubescent, arranged 
nearly in two series. Florets of the ray about twelve, white, twice or thrice 
as long as the disk; of the disk very numerous, yellow, tubular, with the 
border five-cleft. Seed a little angular, a little roughened, naked, slightly 
mucronate. Receptacle conic, chaffy towards the centre of the disk; the 
scales subulate, very narrow, shorter than the florets. 
An exotic now extensively naturalized. 
Grows in damp clayey soils. 
Flowers May — June. 
ACHILLEA, 
Involucrum ovatuin, 
imbrieatum. Corollu- 
Ice radii circiter 5. 
Pappus nullus. Re- 
ceptaculum paleaceum. 
Xjen. Pl. 1313. 
Involucrum ovate, 
imbricate. Florets of 
the ray about 5. Pap- 
pus 0. Receptacle 
chaffy. 
1. Millefolium. 
A. foliis bipinnatifi- 
dis, pilosis, laciniis lin- 
earibus, dentatis, mu- 
cronatis; caulibus sul- 
catis. 
Leaves bipinnatifid, 
hairy, the segments 
linear, toothed, mucro- 
nate; stem furrowed. 
Sp. pl. 3. p. 2208. Pursh, 2. p. 563. Nutt. 2. p. 171. 
Root perennial. Stem about two feet high, pubescent, heaves doubly 
pinnate, the segments linear, acute, dissected and toothed, all glabrous. 
Flowers with terminal corymbs. Involucrum many leaved, imbricate, 
