230 
COMPOSITE. (COMPOSITE FAMILY.) 
involucre of 10-12 leafy bracts; ackenia oblong-obovate , obscurely 
wing-margined, bristly-ciliate, with 2 (or 4) long and slender diverging 
awns (in one variety awnless). —Swamps, Michigan and Ohio south- 
westward. Aug. 
* * Achenia elliptical , narrowly winged , the narrowly notched summit 
of the wing minutely lacerate-toothed: scales of the Older involucre 
foliaceous , much smaller than the inner ; all united at the base : rays 
obtuse , entire : leaves opposite , petioled , 3 -5 -divided: perennial. 
5. €)• tripteris, L. (Tall Coreopsis.) Smooth; stem sim¬ 
ple (4°-9 p high), corymbed at the top ; leaflets lanceolate, acute, en¬ 
tire. (Chrysostemma, L.) — Rich soil, Michigan and Ohio, southward. 
Heads exhaling the odor of anise when bruised : disk-corol¬ 
las turning brownish. 
* * * Achenia oblong , narrowly winged , minutely or obscurely 2- tooth- 
ed at the summit: scales of the outer involucre narrow , about the 
length of the inner , all united at the base : rays mostly entire: leaves 
oposite , sessile , 3- divided: perennial. 
verticillata, L. (Whorled Slender-leaved Core¬ 
opsis.) Smooth, low and slender; leaves closely sessile and 3- divid¬ 
'd' so 03 t0 appear like whorls of six ; the divisions 1 -2 -pinnately part- 
e , very narrowly linear; achenia wedge-obovate. — Damp soil, 
ic igan along the Great Lakes, and southward, rare : often culti¬ 
vated. August. 
• • C. palmata, Nutt. (Three-cleft Coreopsis.) Nearly 
smooth, simple (1°-2° high); leaves sessile, with a broadly wedge- 
shaped outline deeply 3-cleft, rigid ; the lobes broadly linear , entire, or 
t e middle one 3-lobed; achenia narrowly oblong. — Prairies, Michi¬ 
gan and Wisconsin. July. 
* * * * Achenia nearly orbicular, broadly winged, incurved, furnished 
with a callous tubercle on the inside at the top and bottom, crowned 
with 2 small chaff-like denticulate teeth: exterior involucre about the 
length of the inner: rays coarsely 3 - ^-toothed: leaves opposite or 
the uppermost alternate: heads on long naked peduncles. 
* . * * ance Ol&ta, L. (Lance-leaved Coreopsis.) Smooth 
or hairy; stems short, tufted or branched at the base; leaves entire, 
lanceolate, sessile; the lower oblanceolate or oblong-spatulate, taper¬ 
ing into hairy petioles; scales of the outer involucre ovate-lanceolate. 
Lakes Huron and Superior: common in the Southern States: fre¬ 
quent in cultivation. June - Aug. 
^ Branches of the style truncate : rays rose-color : disk yellow- 
• rosea, Nutt. (Rose-flowered Coreopsis.) Stem 
ranc ling, ow, leafy, smooth; leaves opposite, linear, entire; bea s 
somewhat corymbed, on short peduncles; outer involucre very short; 
rays 3-toothed; achenia oblong, wingless; pappus an obscure crown- 
ike border. ^ — Sandy and grassy swamps, Plymouth, Massacbu- 
