SYNOPSIS OF THE GENERA. 



of one or partly five celled, opening with five or ten teeth 

 at the apex. 



Class 11, Dodecandria. — 12 Stamens, 



Order I. Monogynia— 1 Pistil. 



1. A'sARUM, [Page 674.] Perianth single, campanulate, three 



or four-cleft, superior. Stamens twelve placed upon the 

 ovarium. Anthers about the middle of the filaments. 

 Stigmas radiant, in six lobes. Capsules six celled. 



2. Lyth'rum, [Page 675.] Calyx inferior, tubular, with from 



eight to twelve teeth, alternately smaller and erect. 

 Petals from four to six, inserted into the calyx tube. 

 Stamens equal, or double the number of the petals inserted 

 into the base or middle of the calyx tube. Ca^sw/e oblong, 

 of two cells, many seeded. 



Order II. Digynia. — 2 Pistils. 

 3. Agrimo'nia, [Page 676.] Calyx turbinate, the limb five- 

 cleft, surrounded with rigid hooked bristles. Petals five, 

 inserted upon the calyx. Stamens seven to twenty, in- 

 serted upon the ^cal^'x. Fruit one or two small mem- 

 branous nuts, inclosed in the indurated tube of the calyx. 



Order III. Trigynia. — 3 Pistils. 

 4. Reseda, [Page 678.] Calyx persistent, of one piece, many 

 partite. Petals more or less divided, and unequal. 

 Stamens ten to twenty. Capsule three or six angled, 

 bursting at the apex. Seeds numerous, kidney-shaped. 

 (See Euphorbia in Class 21.) 

 (Tetragynia. — 4 Pistils.) 

 (See Tormentilla in Class 12.) 



Order IV. Dodecagynia — 12 Pistils. 

 6. Sempervi'vdm, [Page 681.] Calyx six to twelve-cleft. 

 Petals six to twelve. Stamens twice as many as there are 

 petals. Ovaries as many as there are petals. 



