TITALAMIFLORJE. 



97 



unguiculate, concave. Stamens indefinite, hypogynous. Ovary 

 5-celled ; stigma very large, umbrella-shaped, peltate. Cap- 

 sule crowned by the stigma. Seeds very numerous, minute. 



USES. Unknown. Petiole-like leaves remarkable. 



TYPICAL GENUS. Sarracenia. 



12. Brassicaceee or Crucifera. Herbaceous plants ; rarely 

 under-shrubs. Leaves alternate. Flowers without bracts. 

 Sepals 4, deciduous, cruciate. Petals 4, cruciate. Stamens 

 6, of which two are shorter (tetradynamous). Ovary supe- 

 rior, with parietal placentae, meeting in the middle, and form- 

 ing a spurious dissepiment. Fruit a silique or silicule. 

 Seeds attached by a funiculus, generally pendulous. Embryo 

 with the radicle folded upon the cotyledons. 



A very large and difficult natural order, the subdivisions in 

 which are now made to 

 depend upon the structure 

 of the embryo. They 

 are the following : 



1. Pleurorhizea, when 

 the embryo has the ra- 

 dicle applied to the edge 

 of the cotyledons ; fig. 17. 



2. NotorMzeez, when 

 the embryo has the radi- 

 cle applied to the back of 

 the cotyledons ; Jig. 14. 



3. Orthoplocea, when 

 the embryo has the ra- 

 dicle applied to the back 

 of cotyledons which are 

 hollowed out; fig. 12. 



4. Diplecolobea;, when 

 the cotyledons are three 

 times folded, and the ra- 

 dicle applied to their 



|)*1OK " H.fl 1 fi 



' ' "* Erucastrum Canariense. 1. A flower. 2. 



USES. All the Species The stamens. 3. The siliqua, with the valves 



! , . separating from the replum. 4. A transverse 



harmless; Some ailtlSCOr- S of a seed. 5. A perfect seed. 



I! 



