1890 



A TEXTBOOK OF THEORETICAL BOTANY 



Fig. 1803. — Syringa vulgaris. Lilac. Inflores- 

 cence. 



Fig. i8o^. — Forsytliia riridissivui. Flowers. 



Fig. 1805. — Syringa. Flower in 

 longitudinal section. For 



pollination see in text 



