DICOTYLEDONS. 659 



4. Goodeniaceae, 



5. Stylidieae, 



6. Calycereae, 



7. Compositae. 



B. IsocarpcE, Carpels equal in number to the sepals and petals, usually five, 

 rarely four, and coherent into a generally superior ovary (except Order i, Family i, 

 where there are only two median carpels) ; diminution of the number of stamens 

 does not occur (except in Order i, Family i); in Orders 2 and 3, on the other 

 hand, a perfect staminal whorl is usually interposed; in Order i the stamens are 

 superposed on the petals, and a number of seeds spring from an elevated axial 

 placenta in the unilocular ovary; in Orders 2 and 3 the ovary is multilocular and 

 many-seeded. 



Order 1. Prim.uline8B. 

 Families; i. Lentibulariaceae, 



2. Plumbagineae, 



3. Primulaceae, 



4. Myrsinaceae. 



Order 2. Diospyrinesa. 

 Families: i. Sapotaceae, 



2. Ebenaceae (including Styracaceae). 



Order 3. Bicornes. 

 Families: i. Epacrideae, 



2. Pyrolaceae, 



3. Monotropeae, 



4. Rhodoraceae, 



5. Ericaceae, 



6. Vaccinieae. 



II. Eleutheropetalse or DialypetalsB. 



Petals free, sometimes wanting. 



G. Eucyclce. Gorolla very rarely wanting; stamens very commonly twice or 

 three times as many as petals by the interposition of a perfect or even double 

 (Orders 6, 7) whorl, or by the interposition of an imperfect whorl differing in number 

 from the corolla (Order 5) ; in the isostemonous flowers the stamens are sometimes 

 superposed on the petals (Order 4), or the original stamens branch (especially in 

 Orders 2,3, and 8) ; the number of carpels often the same as that of the sepals 

 and petals (Orders 7, 8), but commonly less — two, three, or four ; ovary unilocular 

 with parietal placentae in Order i, in the others multilocular; seed generally without 

 endosperm. 



Order 1. Parietales. 

 Families : i . Resedaceae, 



2. Violaceae, 



3. Frankeniaceae, 



4. Loasaceae, 



5. Turneraceae, 



6. Papayaceae, 



7. Passifloraceae, 



8. Bixaceae, 



9. Samydaceae, 

 10. Gistineae. 



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