584 



BOTANY 



spurred, like those of Linwria. The fruit is a many-seeded capsule. The plants 

 included in this family are, for the most part, tropical. The more familiar 

 northern representatives belong to the genera Pinguicula, the Butterwort, and 

 Uiricularia, the Bladderwort (see p. 215 and Fig. 34). 



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Fig. 574. — Plantago major. 1, Entire plant ; 

 flower with subtending bract ; 3, fruit ; 4, seed ; 

 5, floral diagram. (After "Wossidlo.) 



Fig. 573. — Digitalis purpurea (£ nat. size).- 

 Poisoifocrs and Officinal. 



Family Gesnepiaeeae. — Flowers differing from those of the Scwph- 

 ulariaceae chiefly in having UNILOCULAR OVARIES with PARIETAL 

 placentae. Flowers sometimes epigynous. 



The Gesneriaceae are for the most part tropical plants, some of which 

 (Gloxinia) are well-known hot-house plants. To this family belong the 

 Broom -rape and Toothwort, parasitic plants without chlorophyll, 

 belonging respectively to the genera Orobanche and Lathraea. 



Family Plantaginaceae. — Flowers actinomorphic, in perianth and 



