CLASS XVII. ORDER II. 61 
V ^ \ I 
Chrysoco'ma. Calyx imbricate, oblong: receptacle naked ; egret hairy, scab¬ 
rous; seed pubescent, (golden-locks.) 
Caca'lia Calyx cylindric, scaly at the base ; receptacle naked; egret hairy, 
(wild-caraway.) 
Spargano'fhorus. Calyx sub-globose, imbricate ; scales secured at the point; 
receptacle naked ; seed crowned with a cartilaginous, shining cup. (water- 
crown-cup.) 
Santoli'na. Calyx imbricate, hemispherical; scales keeled, with scarious 
points. S. 
ORDER II. POLYGAMIA SUPERFLUA. 
A. Flowers discoid; the ray-florets being obsolete. 
Tanacf/tum. Calyx imbricate, hemispheric ; scales acuminate ; rays obso¬ 
lete, 3-cleft; egret somewhat marginal; receptacle naked; flowers corymbed. 
(tansev ) 
Artemi'sia. Calyx imbricate, ovate, with scales rounded, converging; ray- 
florets subulate ; egret 0; receptacle somewhat villose, or nakedish; flowers 
mostly rounded, (wormwood, southern-wood.) S. 
Gnapha'lium. Calyx imbricate, with the marginal scales rounded, scarious, 
shortish, glossy, coloured ; receptacle naked ; egret pilose or plumose, scabrous; 
florets of the ray subulate, of the disk entire. Sometimes all the florets are 
perfect, (life everlasting.) 
Bac/'charjs. Calyx imbricate, cylindric; scales ovate, sub-coriaceous; fer¬ 
tile florets mixed with the perfect; receptacle naked ; egret hairy, (groundsel- 
tree.) 
B. Flowers radiate; the ligulate ray-for els very manifest. [Receptacle naked. ] 
Eri'geron. Calyx imbricate, sub-hemispherical; florets of the ray very 
‘numerous and narrow; receptacle naked; egret double, outer minute, inner 
hairy, of few rays. 
In'ula. Calyx imbricate, generally squarrose ; egret simple, scabrous, some¬ 
times a minute, exterior, chaffy one ; anthers ending in 2 bristles at the base; 
ray-florets numerous ; al ways yellow, (elecampane.) 
As^ter. Calyx imbricate, the inferior scales generally spreading; egret sim¬ 
ple, pilose ; receptacle often deep-pitted ; florets of the ray more than 10, except 
in a few species; colour purple or white, never yellow, (star-flower.) 
Solida'go. Calyx oblong or sub-cylindric, with oblong, narrow, pointed 
straight scales, imbricate, closed upon the flower ; ray-florets about 5, and fewer 
than 10, lanceolate, 2-toothed, equal to, or shorter than, the calyx ; filaments 
capillary, very short; style thread-form, equalling the length of the stamens, 
stigma-cleft, spreading; egret simple, pilose, scabrous; receptacle furrowed 
with dots or punctures ; seeds oblong, ovate ; yellow, (golden-rod.) 
Tussila'go. Calyx simple, swelling; scales equal, and equalling the disk, 
sub-membranous; pistillate florets ligulate or without teeth ; egret simple, ses¬ 
sile ; sometimes polygamous, (eolt’s-foot.) 
Chrysanthemum. Calyx hemispherical, imbricate, with the scales membra¬ 
nous at the margin; egret none, or a narrow margin, (ox-eyed daisy, fever¬ 
few.) “ / 
Bei/'lis. Calyx hemispherical; scales equal; egret 0; receptacle conical; 
seed ovate, (garden daisy.) Ex. 
Tage'tes. Calyx simple. 1-leafed, 5-toothed, tubular; florets of the ray about 
5, permanent; egrec 5 erect awns, (marygold.) Ex. 
Arni'ca. Calyx hemispherical, leafets equal, longer than the disk; receptacle 
naked ; egret simple, hairy ; florets of the ray yellow, often destitute of anthers. 
Sene'cio. Calyx sub-cylindric, equal, scaly at the base; scales withered at 
the points; receptacle naked; egret simple; rays sometimes wanting, (fire- 
weed.) 
Bolto'nia. CaljP imbricate; rays numerous; receptacle conic, punctate; 
seeds flat; egret consisting of minute bristles, with 2 elongated and opposite 
bristles, (false chamomile.) 
Chrysop"sjs. Calyx imbricated, ray-florets mostly yellow ; receptacle naked ; 
egret double; outer one chaffy, minute, inner one scabrous, many-rayed. S. 
Dahlia. See description of species. 
[.Receptacle chaffy or hairy.\ 
AnThemis. Calyx hemispherical; scales with scarious margins, nearl} r 
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