MANUAL OF NATURAL HISTORY, 447 



flowers usually in loose masses ; sepals 4-5, 

 more or less united, aestivation imbricate ; 

 petals 4-5, connivent at base, aestivation val- 

 vate or imbricate ; stamens mostly double 

 the number of the petals, monadelphous ; disk 

 often large and cup-shaped ; ovary single, 

 plurilocular ; ovules usually anatropal ; style 

 one ; stigmas distinct or combined ; fruit bac- 

 cate, drupaceous or capsular ; seeds few, 

 wingless. Mostly tropical plants, especially 

 in Asia and America. 



12. Family. — M ahogany- trees (Cedrelaceae). Trees; 



leaves alternate, exstipulate ; flowers in ter- 

 minal panicles ; calyx 4-5-cleft; petals 4-5 ; 

 aestivation imbricated ; stamens 8-10, mona- 

 delphous or free ; ovary 4j-5-celled; ovules 

 anatropal ; style simple ; stigma peltate ; 

 fruit capsular, consolidated ; seeds numerous, 

 winged. Chiefly important as yielding Ma- 

 hogany and Satin-wood. 



13. Family. — Frankincense-trees (Amyridaceae). 



Trees or shrubs ; leaves opposite or alternate, 

 often stipulate and dotted ; flowers axillary 

 or terminal, racemose or panicled, occasion- 

 ally unisexual ; calyx 2-5-divided, persist- 

 ent ; petals 3-5, mostly valvate; stamens 

 twice the number of the petals ; ovary 1-5- 

 celled ; style solitary; stigmas 1-5; fruit 

 consolidated, dry, hard, indehiscent or val- 

 vular. Inhabit tropical India, Africa, and 

 America. A fragrant balsamic family yield- 



