78 PENTANDRIA — DIGYNIA. [UmhelliferCB. 



35. Hedera. Cat. of 5 teeth. Pet. broadest .it the base. 

 Style single. Berry with 3 — 5 seeds, crowned by the calyx. — 

 Nat. Orel. AuALlACEiE, Juss. — Name of uncertain origin. 



****** Flowers incowplete. 



40. Glaux. Perianth single, inferior, campanulate, coloured, 

 of 1 piece, 3-lobed. Caps, globose, ] -celled, 3-valved, with about 

 5 seeds. — Nat. Ord. Prjmulace.e, Ve7it. — Named from yXav/./ov, 

 given to a plant of a sea-green colour, or because it grew near 

 the sea. 



41. Illecebrum. Cal. of 5 leaves, cartilaginous, subcucullate, 

 ending in an awl-shaped point. Pet. 0, or reduced to 5 subulate 

 scales. Capsule superior, with one seed, covered by the calyx. — 

 Nat. Ord. PARONYCiiiEiE, St nil. — Name, ilkcebra, an entice- 

 ment or attraction, anciently given to a showy tribe of plants, 

 now confined to a genus possessing few charms. 



42. Thesiuim. Perianths — 5-cleft, persistent. <S'/«w. with a 

 small fascicle of hairs. Nut inferior, somewhat drupaceous. — 

 Nat. Ord. Santalace.e, Br Name of doubtful origin. 



ORD. II. DIGYNIA.— 2 Styles. 

 * Perianth double, inferior. Cor. monopetalous. 



43. Swertia. Cal. 4 — 5-partite. Cor. rotate, with 2 necta- 

 riferous glands at the base of each segment. Caps. 1-celled, 2- 

 valved. — Nat. Ord. Gentiane^, Juss. — Named after Emmanuel 

 Swert, a Dutch botanist, who published a Florilegium in 1612. 



44. Gentian A. Cal. 4 — 3 -cleft. Cor. subcampanulate, fun- 

 nel- or salver-shaped, tubular at the base, destitute of nectarife- 

 rous glands. Styles often combined. Caps, of 1 cell, 2-valved. 

 — Nat. Ord. GENTiANEiE, Juss. — Named from Gentius, king of 

 Illyria, who, according to Pliny, brought into use the species so 

 much valued in medicine, the bitter Gentian, G. lutea. 



45. CuscuTA. Ca7. 4 — 5-cleft. Cor. campanulate, 4 — 5 lobed. 

 Caps, bursting all round transversely at the base, 2-celled, with 

 the cells 2-seeded. — Parasitical leajtess plants, ivith long tivi7i- 

 ing Jiliform stems. — Nat. Ord. CoNVOLVULACEyE, Juss. — Name, 

 the same as xaeavDa, probably froni the Arabic Keshout. ( Tlieis?) 



** Perianth double,^ superior. Petals 5. Seeds 2. 

 Nat. Ord. Umbellifer/E. (Gen. 46 — 85.) 



This is so extensive and so ])erfeclly natural a groupo, and the genera 

 which compose it are vi'ith such difficulty distinguished the one from 

 the other, that I shall here offer a few remarks, with a view to render 



' In this, so much of tlie calyx is incorporated with the gerinen, and so 

 minute are the segments, or free portions, that at first siglit (as in tlie •2d Div. 

 of the CI. IV., Galium, &c.), it appears as if no calyx were present. 



