X CONSPECTUS OF THE ORDERS. 



XCIV. LEXTiBTTLARiEiE. Small aquatic or marsh herbs, furnished with smalt 

 bladders. Leaves entire or divided into narrow segments. Racemes terminal or 

 axillary, simple or branched. Ovary 1-celled; placenta globose or ovoid, free 

 central. 



XCV. Gesneeace^:. Herbs or very smnll shrubs. Leaves opposite or sub- 

 radical (alternate in Linnceopsis), undivided. Cymes axillary or subradical. Ovary 

 1-celled (at least in the upper part) ; placentas 2, parietal, much intruded. 



XCVI. Big^oxiace.e. Trees or shrubs, frequently twiners or climbers. Leaves 

 opposite, rarely whorled or alternate, usually compound. Ovary 2-celled, more 

 rarely 1-celled with 2 parietal placentas; ovules numerous. 



XCTII. Pedalixe^;. Herbs, rarely shrubs or small trees. Leaves opposite- 

 or the upper alternate, simple. Ovary 2-4-(rarely l-)celled ; ovules solitary, or 

 many superposed. 



