344 LXXV. COMPOSITE. CorEOPSIS. 
suckers and by cuttings. Although they grow in any soil, yet it is better to 
give them arich loam, and water them with liquid manure. 
43. LEPTOPODA. Nutt. 
Gr. Xerros, slender, rovs, foot ; alluding to the elongated peduncle. 
Heads many-flowered ; rays neutral, cuneate, 3—4-cleft; disk %; 
scales spreading, numerous, attenuate ; receptacle conical; chaff 0 ; 
pappus of 6—10 fringed squamee.—% IVorth. American herbs, with 
the halit of Helenvwm. 
L. pracHypopa. T. & G. (Helenium quadridentatum. Hook.) False 
Heleniwm.—St. leafy, corymbose at summit; dvs. decurrent, lanceolate, 
subentire, the lower toothed, obtuse; Ads. on short peduncles; scales lance-line- 
ar; about half as long as the 8—12 drooping rays; disk brownish-purple.—A 
plant separated from Helenium only on account of its sterile rays. It grows in 
damp soil, from the southern counties of Ill. to Tex. and Southern States. Stem 
about 2f high. Heads several or numerous. Rays broadest at summit, rather 
deeply and irregularly toothed, 7—9"’ by 4—5”. 
Section 2. Heads discoid and radiate in the same genus. 
44, ACTINOMERIS. Nutt. 
Gr. axrwy, aray, pnets, a part; partially radiate. 
Heads many-flowered, ray flowers 4—14, rarely 0; involucre scales 
foliaceous, subequal, in 1—3 series; receptacle conical or convex, 
chaffy ; achenia compressed, flat, obovate, 2-awned.—% Plants tall. 
St. winged with the decurrent leaves. Hds. corymbose, yellow. 
1. A. HELIANTHOIDES.. Nutt. (Verbesina. Michz.) 
St. hirsute, winged except near the base; lvs. alternate, ovate-lanceolate, 
decurrent, acuminate, serrate, hirsute and scabrous; corymbd contracted; rays 
6—14, long and narrow; scales erect—Rather common in barrens and prairies, 
Western States! It is a rough plant, with the aspect of a Helianthus. Stem 
conspicuously winged with the decurrent leaves, 2—4f high. Leaves 2—4’ by 
6—14”, grayish. Rays often irregular, 1’ long. Jn. Jl. 
2. A. sauarrosa. Nutt. (Coreopsis alternifolia. Linn.) 
St. tall, winged, branching above, somewhat pubescent; Ws. alternate, 
often opposite, oblong-lanceolate, elongated, tapering to each acute or acumi- 
nate end, scabrous, decurrent on the petiole and stem; Ads. small; scales spread- 
ing or reflexed; rays 4—8: receptacle very small.—Dry, alluvial soils western 
WN. Y., and Western States! common. It isa tall, unsightly weed, 5—10fhigh. 
Leaves 6—14’ by 1—3’, sharply serrate, especially the lower. Rays }/ long. 
Aug.—Oct. 
45. COREOPSIS. 
Gr. koots, a bug, ots, appearance; from the concavo-convex, 2-horned achenia. 
Involucre double, each 6—10-leaved; receptacle chaffy; achenia 
compressed, emarginate, each commonly with a 2-toothed pappus.— 
Lvs. mostly opposite. Rays rarely wanting. 
§ Rays 0. 
1. C. piscomea. Torr. & Gray. Rayless Tick-seed. . 
Glabrous, much branched, erect; Jus. ternate, long-petiolate; Jfts. ovate- 
lanceolate, strongly dentate, petiolulate ; Ads. loosely paniculate, on slender pe- 
duncles ; outer involucre 3-—5 linear-spatulate, leaf-like bracts, inner of many 
linear, appressed scales; ach. linear-oblong, tapering below, twice longer than 
the 2 erect awns which are hispid upwards!—Ohio, Suwllivant! toLa. Stem 
and branches purplish. Terminal leaflets 3—5’ by 4—14’, lateral much small- 
er. Heads small (}/ diam.), about 30-flowered. Jl.—Sept. 
