Cl. .>.] ARISTOLOCHUE. 85 



superior, either entire or divided, the segments in a 

 simple or double row, the inner ones (Corolla Linn.) 

 petal-like. Stamens definite or indefinite, inserted 

 upon the Pistil," (that is above the germen). " Ger- 

 men simple. Style either simple, or definitely multi- 

 plied, or wanting. Stigma simple or divided, Fruit 

 of one or many cells. Plants herbaceous and aquatic." 

 Jussieu's genera are Valisneria, Stratioies, Hydro- 

 eharis, fig. 156, Nymph&a, Nelumbinm, Trapa, Pro- 

 serpinaca and Platia. The author confesses his dis- 

 satisfaction respecting the last five genera, and not 

 without reason. Mr. Salisbury, in Sims and Konig's 

 Annals of Bot. v. 2. 69, first I believe showed Nym- 

 phcea and it's allies, amongst which are my Nuphar 

 and Cyamus, (the latter Jussieu's Nelumbinm,} to be 

 dicotyledonous, and therefore they can have no place 

 here; see Ord. 62. Trapa is well explained by 

 Gasrtner, as having two, though very unequal, Co- 

 tyledons. Prose rpinaca has two very distinct equal 

 ones. 



CLASS 5. DICOTYLEDONES, WITHOUT PETALS, 

 AND WITH EP1GYNOUS STAMENS (97). 



" Calyx superior, oj one leaf. Corolla none. Stamens 

 definite. Styles either wanting, or single, or defi- 

 nitely numerous." 



Ord. 23. ARISTOLOCIIIJE. The only Order. 

 " Stigma divided. Fruit of many cells, with numerous 



Seeds." 



