THE NATURAL SYSTEM. 265 



b. The Borage family have round stems and harsh 

 foliage, generally rough or prickly. The flowers are 

 delicate. The bugloss and the forget-me-not furnish 

 familiar examples. 



c. The Nightshade family have generally clammy 

 leaves, dingy flowers, and a rather disagreeable odour. 



d. The Primrose family have delicate salver-shaped 

 or wheel flowers, with the stamens opposite the seg- 

 ments of the corolla. 



In the SECOND division the flowers are irregular, 

 ringent, or labiate. 



15. The Butterwort family .... Lentibularice. 



16. The Broom-rape family . . . Orobanchacece. 



17. The Figwort family Scrophularinece. 



18. The Vervain family Verbenacea. 



19. The Labiate family LaUata. 



The Figwort family have a two-celled, many-seeded 

 seed-vessel, like the snapdragon, Linnaean class 14, 

 Didynamia, order Angiospermia. 



The Labiate family have a two-lipped flower, with 

 four small nuts at the bottom of the calyx. It corre- 

 sponds generally with the Linna3an class 14, Didy- 

 namia, order Ch/mnospermia. 



4. Monochlamydece. The distinguishing feature of 

 this sub-class or division is the flowers having a single 



