438 



ILLDSTEATIONS OF THE NATCRAL ORDERS. 



tensively used to adulterate coflfee : and the roots of some species 

 of Ti-agopogon (Salsify, Oyster-plant) and Scorzonera are well- 

 known esculents. 



849. Ord. lobeliacese {Lobelia Family). Herbs or somewhat 

 shrubby plants, often yielding a milky juice, with alternate leaves 

 and perfect flowers. Limb of the adnate caljx five-cleft. Corolla 

 irregularly flve-lobed, usually appearing bilabiate, cleft on one side 

 nearly or quite to the base. Stamens 5, epigynous, coherent into a 

 tube. Stigma fringed. Capsule one - several-celled, many-seeded. 

 Seeds albuminous. — Ex. Lobelia. All narcotico-acrid poisons. 

 The well-known Lobelia inflata (Indian Tobacco) is one of the most 

 powerful articles of the materia medica, and most dangerous in the 

 hands of the reckless quacks who use it. — This order is only a 

 form of the next, with ii-regular flowers. 



850. Ord. Campanulacca; {Campanula Family). Herbs, like the 

 last, but the juice less acrid, and the corolla regular, campanulate. 



usually five-lobed, withering. Stamens five, distinct. Style fur- 



riG. 900. Campanula rotundifolia, much reduced in size. 901. Lobelia inflata, reduced in 

 size. 903. A flower, enlarged. 908. The united filaments and anthers enclosing tlie f!tyle; the 

 corolla and limb of the calyx cut away. 904. The stigma surrounded by a fringe. 905. Trans- 

 verse section of a capsule. 90j. Section of a magnified seed, showing the embryo. 



