588 



BOTANY 



PART II 



The Rubiinae comprise herbaceous, shrubby, and, more rarely, 

 arborescent plants, varying greatly in general appearance, and, with 

 the exception of opposite leaves, having but little in common in their 

 vegetative structure. The flowers are usually small and aggregated in 

 profusely branched inflorescences, which often assume an umbellate 

 character. The corolla is sometimes campanulate or cylindrical, but, 



Fig. 57S\ — Asperula odorata. 1, Apex 

 of floWering shoot. The false whorls 

 consisting of two leaves and four to 

 six stipules ; 2, flower cut through 

 longitudinally ; 3, longitudinal sec- 

 tion of fruit ; 4, floral diagram. 

 (After Wossidlo.) 



Fig. 579.— Coffea ardbica. 1, Flowering branch ; 2, fruit ; 

 3, fruit in transverse section ; 4, seeds. — Offici-v.il. 

 (After Wossidlo.) 



most frequently, rotate or funnel-shaped, according as its lower 

 portion forms a longer or shorter tube. The fruit assumes various 

 forms, sometimes dry, sometimes juicy. 



Family Rubiaeeae. — Flowers actinomorphic, androecium with 



FULL NUMBER OF STAMENS ; Ovary DIMEROUS, BOTH LOCULI fertile. 



Herbs and woody plants with simple, stipulate leaves (Figs. 578-580). 



The Bubiaceae form one of the largest and most varied families of 



the vegetable world. The almost always entire and opposite leaves 



and the invariable presence of stipules, either leafy or scale-like, con- 



