SYNOPSIS OF GENERA. XXIX 



LEONTODON. Recept. naked. Down stalked, simple. Cal. imbricated, 

 double; scales of the outermost lax. p. 160. 



APARGIA. Recept. naked, dotted. Down feathery, sessile, unequal and 

 various. Cal. double ; innermost imbricated, p. 166. 



THRINCIA. Involucre nearly simple, multipartite, with a few small scales 

 at the base. Recept. naked, pitted. Pappus of the florets of the circumfer- 

 ence scaly, those of the centre feathery, sessile, p. 165. 



HIERACIUM. Recept. almost naked, dotted. Down simple, sessile. Cal. 

 imbricated, ovate, p. 162. 



CREPIS. Recept. roughish. Down simple, partly stalked. Cal. double; 

 outermost lax, tumid, deciduous, p. 161. 



HrPOCJTJKftia. Recept. chaffy. Seed-down feathery. Cal. somewhat im- 

 bricated, p. 165. 



LAPSANA. Recept. naked. Down none. Cal. double ; innermost of 

 equal channelled scales, p. 160. 



CICHORIUM. Recept. slightly chaffy. Down chaffy, shorter than the 

 seed. Cal double, p. 166. 



* * Corollas all tubular, and generally spreading, so as to form a hemispherical 



head. CINAROCEPHALJE, Juss. 



ARCTIUM. Cal. globose ; scales spinous, hooked, inflexed. p. 156. 



SAUSSUREA. Invol. oblong, imbricated with unarmed scales. Recept. 

 setose or chaffy. Pappus double, sessile ; ext. of short, rough bristles, per- 

 sistent; int. feathery, united at the base. Anthers below setose, p. 154. 



CARDUUS. Cal. tumid, imbricated; scales spinous. Recept. hairy. 

 Down deciduous, capillary, roughish. p. 158. 



CNICUS. Cal. tumid, imbricated ; scales spinous. Recept. hairy. Down 

 deciduous, feathery, p. 155. 



CARLINA. Cal. swelling; outer scales spinous; inner coloured, polished, 

 radiant. Recept. chaffy. Down feathery, p. 156. 



(See Centaur -ea, in Ord. FRUSTRANEA.) 



* * * Corollas all tubular, erect and parallel, crowded, forming a level top, 



without a ray. (Part of CORYMBIFER^E, Juss.j 



BIDENS. Recept. chaffy. Down rough with reversed prickles. Cal. of 

 many parallel, channelled scales. Cor. occasionally radiated, p. 154. 



EUPATORIUM. Recept. naked. Down rough. Cal. imbricated, oblong. 

 Style cloven half way down, prominent, p. 142. 



(See Tanacctum, Senecio, Aster and Anthemis, in Ord. II.) 



Order II. SUPERFLUA. 



Florets all perfect and fertile, though those of the circumference have no stamens. 

 * Corolla of the marginal florets obsolete, or ivanting. Discoid, (CoRYM- 



BIFER^E, JtlSS.) 



TANACETUM. Recept. naked. Seed with a membranous crown. Cal. 

 imbricated, hemispherical. Florets of the circumference 3-cleft, obsolete, 

 sometimes wanting, p. 151. 



ARTEMISIA. Recept. either naked or hairy. Down none. Cal. imbri- 

 cated; scales rounded, converging, Fl. of the circumference awl-shaped, 

 entire. p= 15]. 



