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CLASS XVIII. ORDER I. 
Exotic. 
Bellis. Calyx hemispherical J scales equal : egret 0 : receptacle conical : 
seed obovate. 49. 45 — (garden daisy.) 
Tage'tes. Calyx simple, 1-leafed, 5-toothed, tubular: florets of the ray 
about 5, permanent : egret 5 erect awns. 49. 55 — (marygold.) 
(Receptacle chaffy or hairy.) 
A >; "them if. Calyx hemispherical ; scales with scarious margins, nearly 
equal : egret 0, or a membranous margin : florets of the ray more than 5 : re- 
ceptacle chaffs flat, with a rigid acuminate apex : seed crowned with a mem- 
branous border, or egret. 49. 55 — (may-weed chamomile.) S'. 
Achille'a. Calyx imbricate, ovate, unequal : egret 0 : florets of the ray 5 
to 10, roundish, dilated. (Flowers corymbed.) 49. 55 — (yarrow.) S. 
Heliop"sis. Calyx imbricate, with ovate-linear lined scales : ray-florets 
linear, large : receptacle chaffy, conic ; the chaffs lanceolate : seeds 4-sidcd : 
egret 0. 49. 55 — (sun-ray.) S. 
Hele Niuii. Calyx 1-lcaved, many-parted : egret 5-awned, chaffy leaves : 
receptacle globose, naked in the disk, and chaffy in the ray only : florets of 
the ray half-3-clcft : seed villose. (Leaves decurrent.) 49. 55— (false sun- 
flower.) S. 
Order 3. Polygamia frustranea. 
Heuan"thus. Calyx imbricate, sub-squarrose, leafy : receptacle flat, 
chaffy : egret 2-leaved, chaff-like, caducous. 49. 55 — (sunflower, jcrusalem 
artichoke.) S'. 
Rcddeck' ia. Calyx consisting of a double order of leafets or scales : re- 
ceptacle chaffy, conic : egret a 4-toothed margin, or 0. 49. 55 — (cone-flow- 
er.) S. 
Exotic. 
Centav'rea. Calyx various, mostly imbricate, roundish : egret simple, 
various : receptacle bristly : corollas of the ray, funnel-shape, longer, irregu- 
lar. 49. 54 — (blue-bottle, blessed thistle.) 
Order 4. Polygamia necessaria. 
Exotic. 
Calen"dula. Calyx many-leaved, equal : receptacle naked : egret none : 
seeds of the disk membranaceous. 49. 55 — (pot marygold.) 
Order 5. Polygamia segregata. 
Elephan' topus. Partial calyx 4-flowered : florets 5-cleft, ligulate, perfect : 
receptacle naked : down setaceous. 49. 55 — (elephant-foot.) 6'. 
CLASS XVIII. GYNAXDRIA. 
Order 1. Monandria. 
A. Anther adnatc, sub-terminal, not caducous ; masses of pollen affixed by 
the base, and made up of angular particles. 
Okchis. Corolla ringent-like, upper petal vaulted : lip dilated, spurred be- 
neath : masses of pollen 2, adnate, terminal. 7. 21 — (orchis.) S. 
Habena ria. Corolla ringent ; lip spurred at the base beneath : glands of 
the stalks of the masses of pollen naked and distinct ; cells of the stalks ad- 
nate, or separated. 7. 21 — S. 
B. Anther parallel with the stigma, not caducous ; masses of pollen affixed 
to the summit of the stigma, and made up of farinaceous or angular parti- 
cles. 
GooDYE'nA. Corolla ringent-like, the 5 lower petals placed under the gib- 
bous lip, which is undivided above ; style free ; constituent particles of the 
masses of pollen angular. 7. 21 — (rattlesnake-leaf, scrophula weed.) S. 
