142. RUBIACEAE. IgS. 



.tile. Ovary superior, 2 — 4 celled. Sometimes only 1 cell fertile. 

 Ovules many in each cell. Style simple. Stigma, filiform, entire. 

 Fruit dry, 1 — 4 celled, 1 — many seeded. Seeds with fleshy endos- 

 perm. 1 genus 5 species. 

 PLANTAGO L. (Annual or perennial herbs.) 



1. dregeana Presl. Coastbelt. 



2. lanceolata L. Midlands. 



3. major L. Cosmopolitan. 



4. remota Lam. Mooi River. In damp ground. 



5. longissima Decne. Inanda. 



FAMILY 142— RUBIACEAE. 



Herbs, shrubs or trees. Leaves opposite or whorled, entire, 

 stipulate (stipules interpetiolar or sometimes leaf -like). Flowers 

 regular or nearly so, hermaphrodite, or rarely unisexual. Petals 

 united below. Stamens free, epipetalous, as many as corolla lobes. 

 Ovary inverted. Styles 1 or several, united at the base. Seeds 

 endospermic. 24 genera 85 species. 



1. Ovules solitary in each ovary cell. (Coffeoideae). 2. 



Ovules 2 or more in each ovary cell. (Cinchonoideae). 17. 



2. The (inverted) ovules pendulous or descending, and therefore 



micropyle superior. Radicle of embryo superior. 3. 



The (inverted) ovules basal or ascending. Micropyle inferior. 



Radicle inferior. 8. 



3. Corolla with imbricate, sometimes contorted aestivation. 



Shrubs or trees. 4- 



Corolla with valvate aestivation. 5. 



4. Corolla with contorted aestivation. Calyx with 2 enlarged seg- 



ments after flowering. Coloured in the fruit. 



11 ALBERTA. 



Corolla with imbricate but not contorted aestivation. Calyx 



4 toothed, not enlarged and coloured in fruit. Flowers in 



dense heads. 1 CEPHALANTHUS. 



5. Herbs. 6. 



Shrubs or trees. 7. 



6. Ovary 1 — 2 celled. Fruit dry. Leaves opposite. Stigma entire. 



10 PENTANISIA. 



Ovary 3 — 5 celled Fruit fleshy. Leaves whorled. Stigma 



lobed. (Fadogia) 14 PACHYSTIGMA. 



7. Ovary 2 celled. Drupe of 1—2 pyrenes. 12 PLECTRONIA. 



Ovary 3 — 6 celled. Drupe of 3 — 6 pyrenes. 



13 VANGUERIA. 



8. Shrubs or trees. Stem woody throughout. 9. 

 Herbs or undershrubs or if shrubby then flowers small, axil- 

 lary or dioecious. 10. 



