CLASSIFICATION OF DICOTYLEDONS 105 



(d) Ovary syncarpous. Placentation axile. 



10. Malvacem. Flowers actinomorphic. Stamens indefinite, 



filaments united and adhering at the base to the 

 corolla. Anthers one-lobed. 



II. Disciflorae. Flowers hypogynous with a distinct disk. 



11. GeraniacecR . Flowers actinomorphic. Stamens 5 + 5 



(obdiplostemonous) or five only. Fruit beaked with 

 five chambers, each with one seed. 



12. Oxalidacea. Flowers actinomorphic. Stamens 5 + 5 



obdiplostemonous. Fruit five - chambered, with a 

 number of seeds in each chamber. 



III. Calyciflorse. Flowers perigynous or epigynous. 

 (a) Perigynous usually. Gyncecium apocarpous. 



13. PapilionacecB' . Flowers zygomorphic, papilionaceous, 



weakly perigynous. Stamens ten, with the filaments 

 all combined, or one separate from the other nine. 

 Carpel one. 



14. RosacecB' . Flower actinomorphic. Stamens usually in- 



definite (rarely epigynous). 



(b) Epigynous. Gynacium syncarpous. 



15. Umbellifera . Flowers actinomorphic in umbellate in- 



florescences. K5 or C5 A5 G (2). Fruit a schizocarp. 



Sub-Class III. : GAMOPETAL^. Corolla gamopetalous. 



(a) Flowers Hypogynous. Gyn^cium syncarpous. 



(i) Flowers actinomorphic (stamens equal in number to the 

 petals ; corolla regular.) 



16. Primulacece° . Placentation free-central. Stamens equal in 



number to the petals opposite to them. 



17. Convolvulacece. ' Ovary two- (three-) chambered, with two 



ovules in each chamber ; sometimes each chamber sub- 

 divided by a false partition into two halves, each con- 

 taining one ovule. Twining herbs. 



18. SolanacecB. Ovary two-chambered, with several ovules in 



each chamber. 



