KEY TO THE FAMILIES 



XV 



Ovary superior. 

 Ovaries many. 



Ovary one, 10-oelled, 10-ovnled. 

 Ovary one, 5-oelled, 5-horned. 

 Ovary one, 4celled, 4-ovuled. 

 Ovary one, 3-celled, 3-ovuled. 

 Ovary one, 2H3everal-celled, many- 

 ovuled. 

 Leaves vertioillate. 

 Leaves not vertioillate. 

 Ovary one, 1-oelled, many-ovnled. 

 Ovary one, 1-ovuled. 

 Vines or herbs with compound leaves. 

 Herbs with simple leaves and sheath- 

 ing stipules. 

 Herbs with simple leaves ; stipules not 

 sheathing. 

 Several flowers together and sur- 

 rounded by a 5-lobed bract. 

 Flowers surrounded by scarious 



bracts. 

 Bracts if present not scarious. 

 Style and stigma one ; flowers 



not perfect. 

 Styles or stigmas two-three. 

 Leaves alternate. 

 Leaves opposite. 



Ovary superior. 

 Ovary inferior. 



B. 



Corolla irregular. 

 Stamens more than ten. 

 Stamens ten or less. 

 Ovary one-celled and with one parietal 

 placenta. 

 Upper petal enclosed by the lateral in 



the bud. 

 Lateral petals enclosed by the upper in 

 the bud. 

 Ovary 1-ceIled and with two parietal 



placentae. 

 Ovary 1-celled and with three parietal 



placentae. 

 Ovary 2-oelled, 2-ovuled. 

 Ovary 2-oelled, several-ovuled. 

 Leaves simple. 

 Leaves pinnate. 

 Ovary 3-celled, 6-ovuled. 

 Ovary 5-celled, several-ovuled. 

 Corolla regular. 

 Stamens more than ten and more than 

 twice the divisions of the corolla. 

 Pistils few-many. 

 Imbedded in pits in the receptacle. 

 On the receptacle. 

 Stamens on the receptacle. 



Eanunculaceae, 90. 

 Phytolaccaceae, 84. 

 Crassulacbae, 102. 

 Calliteichaceae, 126. 

 euphoebiaceae, 122. 



AlZOACEAE, 85. 



Lytheaobae, 136. 

 Caeyophyllaceab, I 



Moeaceae, 72. 



polyqonaceae, 75. 



Nyctaginaceab, 84. 

 Amakanthacbab, 82. 



Urticaceae, 73. 



Chbnopodiaceae, 79. 

 Caeyophyllaceab, 86. 



1. 

 2. 



Eanunculaceae, 90. 



Cabsalpiniaceae, 110. 



Papilionacbae, 111. 



Papaveeaceae, 95. 



Violacbab, 134. 

 Polygalacbae, 132. 



Lythraceae, 136. 

 Papilionacbae, 111. 



HiPPOCASTANACBAE, 128. 



Balsaminacbae, 129. 



Nymphaeaobae, 89. 



