MANUAL OF NATURAL HISTORY 403 



dons flat. Natives of Southern India; one 

 genus (Nyssa) occurs in the United States. 



10. FAMILY. Myrobalans (Combretacese). Trees or 



shrubs ; leaves alternate or opposite, entire, 

 dotless; calyx adherent; anthers bursting 

 longitudinally ; ovary 1 -celled ; fruit dru- 

 paceous, baccate or nut-like; seeds pendulous; 

 cotyledons convolute or plicate. Natives of 

 tropical Asia, Africa, and America 



11. FAMILY. Illigerads (Illigeracese). Trees or 



shrubs ; leaves opposite or alternate, ex- 

 stipulate ; calyx adherent ; corolla wanting ; 

 anthers dehiscing by recurved valves ; ovary 

 1 -celled ; fruit unilocular, indehiscent ; coty- 

 ledons convolute. Occur in inter-tropical 

 regions. 



VII. ORDER. CAMPANALS (Campanales). 



Flowers dichlamydeous, monopetalous ; embryo 



with little or no albumen. 



1. FAMILY. Composites (Asteracese). Herbaceous, 

 shrubby, or occasionally arborescent ; leaves 

 alternate or opposite, exstipulate, simple, but 

 often much divided ; flowers, named " florets," 

 unisexual or hermaphrodite, collected in 

 dense heads upon a common receptacle, and 

 surrounded by bracts in the form of an invo- 

 lucre ; corolla gamopetalous, ligulate, tubular, 

 or bilabiate, aestivation valvate ; anther^ 

 syngenesious ; ovary 1 -celled ; ovule erect ; 



