THE DICOTYLEDONES 



i8i 



The North American genus Ceanothiis {Fig. 1713), the CaHfornian Lilac, 

 contains fortv species. Many are deciduous but a few are evergreen with 



Fig. 17 1 3. — Ceanothiis deiitatiis. Shoot with 

 inflorescence. 



small ovate leaves and bright blue or pink flowers crowded into dense 

 inflorescences. The flowers are epigynous. Several species are commonly 

 cultivated in gardens. 



Fig. 17 14. — Vitis ritiifera. Flowers. A, Abscission of the 

 perianth. B, Longitudinal section of flower, showing 

 coherent perianth being shed in one piece. {After Le Maout 

 and Decaisne.) 



26" 



