198 



OUGANOGRAl'HV. 



BOOK I- 



Class IV. Collective fruits. ANTHOCARPI. 

 Single. 



Perianthum indurated, dry, 

 Perianthum flesliy. 

 Aggregate. 



Hollow, ... 



Convex. 



An indurated amentum, 

 A succulent spike. 



DiCLESIUM. 



Sphalekocar- 



PIUM. 



Syconijs. 



Strobilus. 

 Sorosis. 



Class I. Fruit simple. A P O C A R PI . 



Ovaria strictly simple ; a single seiies tnily produced by a single flower. 



I. Utriculus, Gartner. — (Cystidium, X.f;M-.) 



One-celled, one or few-seeded, superior, membranous, frequently dehiscent 

 by a transverse incision. This differs from the pyxis in texture, being strictly 

 simple, i. e. not proceeding from an ovarium with obliterated dissepiments. 



Example. — Amaranthus, Clienopodium. 



II. AcHENiuM ; (Akenium, of «io«y ; Spermidium ; Xylodium, Z^ejz;. ; The- 



cidium, Mirb. ; Nux, Linn.) 



