DICOTYLEDONES— MONOCHLAMYDE^ 



259 



Ovules 1—2. 



Ovule erect ....... 



Ovule pendulous ..... 



Ovary 2- or more-celled. 



Seeds few, not winged 



b. Flowers hermaphrodite 

 Carpel solitary. 



Ovule erect. Embryo with endosperm and 



perisperm . . 

 Ovule suspended. Embryo with endosperm 

 Carpels several. 



Ovule erect. Embryo with endosperm 

 B. Leaves exstipulate. 



a. Flowers xinisexual. 



Ovules very numerous . ... 



Ovules solitary or very few. 

 Flowers naked. 



Ovary 1-celled ...... 



Flowers within an involucre. 



Anther- valves recurved . . . . 



Anther- valves slit. 



Embryo on the outside of the albumen . 

 Embryo enclosed in the albumen . 



b. Flowers hermaphrodite. 



Embryo with endosperm 



Embryo without endosperm . . . . 



2. M o n o c h 1 a m y d e o u s F 1 o ^ 



A. Ovary inferior, or partially so. 



a. Leaves stipulate. 



1. Flowers hermaphrodite .... 



2. Flowers unisexual . . . . 



b. Leaves exstipulate. 



1. Flowers hermaphrodite. 



Ovary 3 — 6-celled. Ovules numerous . 

 Ovary 1-celled. Ovules definite. 



Ovules with a naked nucellus. Leaves op- 

 posite ....... 



Ovules with a naked nucellus. Leaves 

 alternate ....... 



Ovules with integuments .... 



2. Flowers unisexual. 



Amentaceous ....... 



B. Ovary superior. 



a. Leaves stipulate. 



1. Flowers hermaphrodite. 

 a. Carpel solitary. 

 Stipules ochreate 

 Stipules distinct ...... 



MyricacecB. 

 Platanacece. 



Euphorbiacece. 



Piperacece 

 ChlorantJiacecB. 



Saururacece. 



Podostemacece. 



MyricacecB. ■ 



Atherospermacece . 



Monimiacece. 

 E uphorhiacecE . 



Piperacece. 

 Podostemacece. 



Aristolochiacece. 

 Corylacece. 



Aristolochiacece. 



Loranthacece. 



Santalacece. 

 CJienojwdiacece. 



Juylandacece. 



Polygunacece. 

 Petiveriacecp. 



s2 



