260 NATURAL SYSTEM ©P JtJSSIEW. 



cells. Embryo in a mucilaginous albumen ; radicle 

 inferior. Stem sarmentose. Leaves alternate. 



11. Polemonia. — Corolla regular, five-lobed. Sta- 

 mens five, inserted into the tube of the corolla. 

 Germen surmounted by one style, and three stigmas. 

 Capsule enclosed by the persistent calyx, three- 

 celled and three valved. Embryo in the centre of 

 a corneous albumen, radicle inferior. Phlox, Can- 

 tua, and Polemonium are American examples. 



12. Bignonice. — Calyx divided. Corolla irregular. 

 Stamens four, didynamous, and accompanied by a 

 sterile filament. Capsule two-celled, two-valved. 

 Embryo without albumen. Chelone, Bignonia and 

 Catalpa are American examples. 



13. Gentia?ice. — Calyx monophyllous, divided. Corolla 

 regular, its border parted. Stamens epipetalous 

 equalling the divisions of the corolla. Capsule of 

 one or two cells, and two valves, polyspermous, the 

 seeds attached to the margin of the valves, and the 

 partitions formed by their inflection. Leaves op- 

 posite, entire, and sessile. Gentiana, Frasera and 

 Spigelia are American examples. 



14. Apocynece. — Calyx five-parted. Corolla five lobed, 

 (with an internal nectary or Lepanthium.) Stamens 

 five, inserted into the corolla, and alternating with 

 its lobes. Two seed vessels. Seed frequently 

 comose. Embryo straight, surrounded by a minute 

 fleshy albumen. Vmca, Nerium and Asclepias are 

 examples. 



15. — Sapotce. — Calyx divided, persistent. Corolla 

 regular. Stamens opposite the segments of the 

 Corolla. Germen one. Fruit a berry or drupe, 

 with one, or several monospermous cells. Seed 

 hard and shining, marked by a lateral scar. Stem 



