CLASSIFICATION. 



20.— The PassiflorinesB are often placed as a separate order (Passi- 

 fl jrales) in the Calyciflorae (series B) and then include the Samydaceae, 

 but the latter coxae equally well under series A (Thalamiflorse). Pasgi- 

 flora again is not more perigynoos than many Oapparidaceae, and 

 Papayacese show wonderful variety in the insertion of corolla and stamens 

 in a single species, varying from hypogynous to perigynous in the occa- 

 sionally hermaphrodite flowers of the Papaya. 



The affinities of the Moringaceae and of the Cucurbitaceae ar« very 

 doubtful. 



I. Families witn polypetalous corolla and mostly superior 

 ovary. 



7. The Poppy Family. 



Herbs with milky juice, 4-petals, many stamens, and a 

 1 -celled ovary of 2-many carpels of which the margins may 



project inwards as plates. 7. Papaveraceae ■ (p. 155). 



8. The Cabbage Family. 



Herbs with 4 petals and tetradynamous stamens. Ovary 

 of 2 carpels, divided vertically by a replum. 



8. Cruciferae (p. 355). 



9. The Caper Family. 



Trees, shrubs or herbs with 4 sepals, 4 petals and 4, or 

 many stamens (4-8 in some herbs). A large disc sometimes 

 present. Ovary often on a long gynophore. Ovules numerous 

 on 2-4 parietal placentae. Fruit capsular or baccate. Seeds 

 exalbuminous with curved or spiral embryo. 



9. Capparidaceae (p. 155). 



10. The Arnatto Family. 



Trees or shrubs with usually small (very large in Coch- 

 lospermum) 5-4-merous, sometimes apetalous, flowers with 

 numerous stamens. Disc often present. Ovary sessile 1-8- 

 celled. Fr. capsular, baccate or drupaceous. Seed albumi- 

 nous, of ten arillate, embryo straight. 10. Bixaceae (p. 157). 



N.B. — The disc in Capparidaceae is usually adnate to a short hypan- 

 thium, and bears the petals, in Bixace» uBually hypogynous and glandular. 



60 



