476 MANUAL OF NATURAL HISTORY. 



I. ORDER — Papayals (Papayales). 



Flowers dichlamydeous ; carpels superior, con- 

 solidated; placentse parietal; embryo surrounded 

 by abundant albumen. 



1. Family. — Pangiads (Pangiacese). Trees; leaves 



alternate; flowers axillary; sepals and petals 

 mostly five; scales equal to, and opposite, 

 the petals ; male stamens five or 00, sterile 

 stamens equal to the petals ; ovary 1 -celled ; 

 ovules indefinite ; fruit capsular, succulent, 

 indehiscent, 1 -celled ; seeds 00. Natives of 

 hot parts of India. 



2. Family. — Papaws (Papayacese). Trees or shrubs ; 



leaves alternate ; flowers in axillary racemes 

 or solitary ; calyx 5-toothed ; corolla mono- 

 petalous, 5-lobed ; scales in throat of female 

 flowers wanting ; stamens definite ; ovary 

 1 -celled ; stigma 3-5-lobed; fruit succulent 

 or dehiscent, 1 -celled. Inhabit South Ame- 

 rica, also temperate and tropical parts of the 

 Old World. 



II. OEDER — Cucurbitals (Cucurbitales). 



Flowers monodichlamydeous ; fruit inferior ; pla- 

 centa parietal ; embryo without albumen. 

 1, Family. — Begoniads (Begoniacese). Herbs or 

 under-shrubs ; leaves alternate ; stipules 

 large, scarious ; flowers cymose, pink ; peri- 

 anth adherent, segments coloured, four in the 

 male, and 4-8 in the female ; stamens inde- 

 finite ; anthers collected in a head ; ovary 



