290 PLANTS EXOGEN^ COROLLIFLOR^. 



Subseries III. B. Plants exogenve corolliflorje* 



Dicoiyledones monopetalce hypogyncSf 

 Jussieu Gen. Plant. 



Perigoniiim double ; petals soldered into a single one ; 

 inserted on the thalamus, and bearing the stamens. 



FAMILIES. 



A. Pericarp a cariopsis. 



, Cariopsides 4 or 2, naked ; 

 corolla irregular ; stamens 2 or 4 LABIATE. 32. 



Cariopsides 4 or 2, naked; 

 corolla iiTegular ; stamens 5 BORAGINE^. 31. 



Cariopsides 4, in an utriculus, 

 bearing the style; stamens 4 ...... PYRENACE^. S3. 



B. Pericarp 1, Capsular or drupaceo'us ; 

 a. Seeds on a central spermophore. 



Fruit l-ceWed; coro/Za regular. . PRIMULACE^. 21. 



Fruit 1-celled; corolla irregular 



LENTIBULARES. 24. 



Fruit 2 or 4-celled, becoming 1-celled; 

 corolla regular; stamens 4 PLANTAGINE^. 18. 



Fruit 2-celled, septifidal; 

 corolla not lipped, plaited ; stam. 5 . . . . SOLANE-^. 26. 



Fruit 2-celled, septifidal ; 

 corolla lipped; stamens 2 or 4. . SCROPHULARI^. 25. 



Fruit 2-celled, loculicidal ; 

 retinacle ; stamens 2 or 4, Jilaments 

 separate RHINANTHACE^. 22. 



Fruit 3-celled, loculicidal ; 

 corolla regular; stamens 5 POLEMONIACEiE. 28. 



b. Seeds affixed at the base. 



Capsule 2 or 4-celled .... CONVOLVULACE^. 30. 



Berry 1-celled JASMINEiE. 32. 



Capsule 1-celled, 1-seeded ; 

 stamens 4 , LITTORELLIDEiE. 19, 



