410 MANUAL OF NATUEAL HISTOEY. 



rugose, exstipulate ; flowers showy, in ra- 

 cemes or panicles ; corolla tubular, irregular ; 

 aestivation imbricate ; stamens 2-4 ; ovary 

 partly free ; placentae parietal ; fruit capsular 

 or baccate, 1 -celled ; seeds very numerous ; 

 cotyledons minute, radicle long. Occur in 

 tropical countries, but also in Europe, at the 

 Cape of Good Hope, in New Holland, and 

 the Sandwich Islands. 



7. FAMILY. PecZa?mcfe(Pedaliacese). Herbs, covered 

 with glandular hairs ; leaves opposite or 

 alternate, exstipulate ; flowers usually large, 

 axillary, solitary or clustered ; corolla ir- 

 regular, aestivation valvate ; stamens didyna- 

 mous ; ovary 1 -celled ; placentae parietal ; 

 fruit drupaceous or capsular ; seeds wingless, 

 exalbuminous ; embryo amygdaloid ; radicle 

 short. Distribution general throughout the 

 tropics, but especially in Africa. 



II. OKDER ECHIALS (EcMales). 



Flowers dichlamydeous, monopetalous, symme- 

 trical or non-symmetrical; fruit nucamentaceous, 

 consisting of 1 -seeded nuts, or of clusters of them 

 separate or separable ; embryo large, with little or 

 no albumen. 



I. SUB-ORDER. UNSYMMETEICAL-ECHIALS (Lamianse). 



Flowers irregular, unsymmetrical. 

 1. FAMILY. Selagids (Selaginaceae). Herbs or 

 small branched shrubs ; leaves alternate, 



