DrCOTVLEDONS. 133 



65. SIMARUBACE^. AILAXTHUS FAMILY. 



Trees or shrubs, bark bitter, juice milky; leaves alter- 

 nate, pinnately compound, stipules none ; leaflets not dotted ; 

 flowers in large, axillary or terminal panicles, regular, dioe- 

 cious or polygamous ; calyx 4-5-toothed or parted, persistent ; 

 petals 4-5, deciduous ; stamens twice as many as the sepals, 

 liypogynous ; ovary of 4-5 distinct or united, 1-seeded car- 

 pels ; fruit a samara. 



AILANTHUS. 



Trees, bark brown, nearly smooth ; leaves odd-pinnate ; 

 flowers in dense terminal panicles, greenish-white, polyga- 

 mous or dioecious ; sepals and petals 5 ; staminate flowers 

 with 10 stamens; pistillate flowers often bearing 2-3 stamens ; 

 ovary deeply 2-5-cleft or divided, ovules solitary; samara 

 oblong. 



A. GLAXDULOSA Desf. Tree of Heaven. Trees, sometimes 

 fi()-80 ft. high; leaves odd-pinnate, often 2-3 ft. long; leaflets many, 

 usually opposite, ovate-lanceolate, acuminate at the apex, truncate, 

 ()bli(iue and usually glandular-toothed at the base, entire; flowers 

 about I in. broad, the staminate disagreeably odorous; samaras 

 with oblong wings, 1 in. long. May-June. Introduced from China, 

 and naturalized in many places. 



(JO. MELIACEiE. ^lELTA FAMILY. 



Trees ; leaves alternate, exstii)ulate, pinnately decompound ; 

 flowers perfect, in axillary panicles ; sepals 5, short, obtuse ; 

 petals 5, 2-3 times as long as the sepals, oblong, obtuse ; sta- 

 mens 10, monadel[)h()Us ; ovary 5-celled, lO-ovuled; fruit a 

 5-celled, 5-seeded nut enclosed in a fleshy covering. 



MELIA. 



Characters of the family. 



M. AzEnEKAcii L. rMMi:i;i.i.A 'ri;i:i;. Tires <»t" nnMliuiii size 

 witli ;i (icnsr lit'iiiis|iln'ric:il lir;id; Icjivrs l>i|>iuM;ilr: If.illfts ()vate, 



