Rubiaceae, Capi^ifoliaceae 99 



Order 7. Rubiales. Herbs, shrubs and trees. 

 Z^(^2/^j- opposite, usually undivided. Flowers 5-4-merous, 

 isomerous or androeciiun and gynaeciiun oligomerous, 

 usually actinomorphic. Ovary inferior with one or 

 several loculi, each with 00 -i anatropous ovules. 



A. Stamens as many as corolla-lobes. (For B see 

 page 1 01.) 



Fam. I. RUBIACEAE. Herbs, shrubs or trees, with 

 opposite entire leaves. Stipules always present, inter- 

 petiolar (foliaceous in British species). Flowers 5-4- 

 merous, usually actinomorphic. Sepals mostly valvate. 

 Carpels mostly (2), more rarely (i-co ), each carpel with 

 I -00 anatropous ovules. Style i, with capitate or divided 

 stigma. Fruit various. 



Subfamily Coffeoideae. Carpels each with one 

 ovule. 



Tribe Galieae. Herbs. Leaves and foliaceous stipules 

 forming whorls. Ovules attached to septum. 



A. Sepals distinct, more than half as long as ovary. 

 Corolla funnel-shaped with long tube. Sherardia. 



B. Sepals minute or absent. 



a. Corolla funnel-shaped. Asperula. 



b. Corolla rotate. 



Flowers often 5-merous. Fruit succulent. Rubia. 

 Flowers 4-merous. Fruit dry. Galium. 



Fam. 2. Caprifoliaceae. Usually shrubs or 

 small trees. Leaves opposite, usually exstipulate. Stipuks 

 when present (as in Sambucus) not interpetiolar. Floiuers 

 actinomorphic or zygomorphic. Carpels (2-5), each with 



7-2 



