00 CLASS XVII. ORDER I. 



Genis'-'ta. Calyx 3-lipped, upper lip with 2, lower lip with 3, teeth, (dier's 

 broom.) 



Spa£i"tium. Stigma longitudinal, pubescent above ; filaments adhering to the 

 ovary ; calyx lengthened at the base. (Spanish broom.) Ex. 



U'lex. Calyx 2-leaved, 2-bracted; stamens all united; legume about the 

 length of the calyx, spinose. (furze.) S. 



Ara'chis. Calyx 2-)ipped ; corolla inverted ; legume gibbous, torulose, veiny, 

 coriaceous, (pea-nut.) Ex. 



Erythri'na. Calyx 2-1 ipped ; banner long lanceolate; legume torulose, many- 

 seeded. (coral-tr.ee.) »S. 



CLASS XVIL SYNGENESIA. 



ORDER I. POLYGAMFA JEaUALIS. 



A. Morets ligulate. 



Cich')'rium. Calyx calycled ; egret plumose, sessile, unequal ; receptacle 

 somewhat chaffy, (succory or endive.) 



Leon"todon. Calyx double, imbricate, with flexible leafets; receptacle 

 naked ; egret stipid. (dandelion.) 



Prenan'^thes. FJorets from 5 to 20, in a simple series, (or in one circular 

 row ;) calyx calycied ; receptacle naked ; egret simple, sub-sessile, (white 

 lettuce.) 



l^ACTu'cA. Calyx imbricate, cylindric, with the margin of the scales membra- 

 paceous; receptacle naked ; egret simple, stipid ; seed smooth, (lettuce.) 



HiERA'ciOM. Calyx imbricate, ovate ; egret simple, sessile ; receptacle naked, 

 punctate, or sub-pilose. [From white becoming yellowish.] (hawk-weed.) 



Apar"gia. Calyx imbricate ; receptacle naked, punctate ; egret plumose, 

 sessile, unequal, (false hawk-weed.) 



Son"chus. Calyx imbricate, swelling at the base ; receptacle naked ; egret 

 simple, sessile, (swine thistle.) 



Kri'gia. Calyx many-leaved, simple; receptacle naked ; egret double, exte- 

 rior, 5 to 8-leaved, interior of 5, 8, or 24 scabrous bristles, (dwarf dandelion.) 



Troxi'imon. Calyx oblong, cone-like, many-sepalled, sepals unequal, imbri- 

 cate ; receptacle naked; egret sessile, pilose. jS. 



Apo'gon. Calyx 8-sepalled, in a double series ; receptacle naked ; egret 0, S. 



Chondril"la. Receptacle naked ; egret pilose, stipid ; calyx calycled ; florets 

 in ipany series. S. 



Tragopo'gqn. Calyx simple, inany-leaved; receptacle naked; egret plumose 

 and stipid. (goat's-beard, vegetable oyster.) Ex. 



B. Florets tubulous ; Jlower capitate. 



Arc^tium. Calyx globose, with scales hooked at the apex ; egret chaff-brist- 

 ly; receptacle chaffy, (burdock.) 



Cni'cus. Calyx swelling, imbricate, with prickly scales; receptacle villose, 

 egret caducous, plumose, (thistle.) 



Car"duus. Calyx ovate, imbricate, with prickly scales; receptacle villose: 

 egret pilose, (comb-tooth thistle.) 



Car"thamus. Calyx ovate, imbricate wi'h scales, ovatish, leafy at the apex 

 egret chaff-hairy, or none ; receptacle chaff-bristly, (false saffron.) Ex. 



Cyn"ara, Receptacle bristly ; calyx dilated, imbricate, scales with flesh> 

 oases; emarginate and pointed ; egret plumos.e, sessile, (garden artichoke.) Ei. 



Onopor"don. Calyx ventricose, imbricate, with spreading, spinous scales j 

 receptacle alveolate ; egret capillary, deciduous, scabrous, (cotton thistle.) 



Lia'tris. Calyx oblong, imbricate ; receptacle naked ; egret plumose, persis- 

 tent, (mostly coloured;) seed pubescent, striate. 



Verno'nia. Calyx imbricate, ovate, egret double, exterior sliort, chafly; inte- 

 -ior capillary ; receptacle naked; stigma 2-cleft. 



C. Florets tubulous ; jlower discoid. 



Ccpato'rium. Calyx imbricated, (rarely simple) oblong ; style long, cloven 

 r.iM way down ; egret pilose, scabrous, or rough papillose ; receptacle naked; 

 seed smooth and glandular, 5 striate, (boneset, thoroughwort, joepye ) 



Mika'nia. Calyx 4-6-leaved, 4-6-flowered ; receptacle naked ; egret pilose. 



Kuh'nia. Calyx imbricate, cylindric; receptacle naked; egret plumose, 

 sessile ; seed uubescent, striate, (false boneset.) 



