ANGtOSPERMS. DICOTYLEDONS. 



471 



Order 6. THYMELINEAE : Flowers tetramerous ; calyx petaloid (corolla almost 

 always wanting) ; stamens in one or two whorls, perigynous : carpel solitary, free at 

 the bottom of the torus, usually with one ovule. Woody plants. 



Families : I. Thymelaeaccac, 2. Elaeagnaceae, 3. Proteaceae. 



Order 7. ROSIFLORAE : Flowers usually pentamerous (in Rhodotypus and some 

 others tetramerous) ; stamens 5-30, carpels usually very numerous ; insertion perigynous 

 or epigynous, the perianth and stamens being placed on a torus which is sometimes 

 tubular, sometimes expanded. 



Family : Rosaceae, d. Poterieae, 



a. Pomeae, e. Spiraeeae, 



b. Roseae, f. Pruneae, 



c. Dryadeae, g. Chrysobalaneae. 



Order 8. LEGUMINOSAE: Flowers zygomorphous (Papilionaceae, Caesalpineae), 

 in Mimoseae usually regular ; pentamerous with ten stamens (Papilionaceae, 

 Caesalpinieae) with varying numbers in Mimoseae; carpel solitary, developing into 



a legume. 



Families : I. Papilionaceae, 



2. Caesalpinieae, 



3. Mimoseae. 



B. GAMOPETALAE (Sympetalae). 



I. Isocarpae. Carpels as many as sepals and petals (usually five, rarely more) 

 uniting into an usually superior ovary ; obdiplostemony is usual in Bicornes and 

 Diospyrineae, diplostemony being often supposed to be typical in Primulineae, stamens 

 superposed on the corolla in Primulineae in which the seeds are many on a projecting 

 axial placenta in the unilocular ovary ; ovary plurilocular and many-seeded in Bicornes. 



Order I. BICORNES. 



Families: I. Epacrideae, 



2. Pyroleae, 



3. Monotropeae, 



Order 2. 

 Families : I. Plumbagineae, 



Order 3. 

 Families : I. Sapotaceae, 



4. Rhodoreae, 



5. Ericaceae, 



6. Vacciniaceae. 



PRIMULINEAE. 

 2. Primulaceae, 



3. Myrsineae. 



DIOSPYRINEAE. 



2. Ebenaceae (with Styraceae). 



II. Anisocarpae. The typical number of whorls and members of whorls never 

 increased (haplostemony) ; calyx or single stamens sometimes abortive; carpels usually 

 only two (a posterior and anterior), sometimes three, forming one ovary. 



Order i. TUBIFLORAE. 

 Families: I. Convolvulaceae (with Cuscuteae), 4. Boragineae (Asperifolieae), 



2. Polemoniaceae, 5- Solanaceae. 



3. Hydrophyllaceae, 



Order 2. 



Families : I. Labiatae, 



2. Scrophularineae, 



3. Lentibularieae, 



LABIATIFLORAE. 



6. Acanthaceae, 



7. Selagineae (with Globularieae), 



8. Vcrbenaceae, 



Families 



4. Gesneraceae (with Orobanchaceae), 9. Plantagineae. 



5. Bignoniaceae, 



Order 3. CONTOKTAE. 

 Oleaceae (with Jasmineae), 4. Apocynaceae, 



Gentianeae, 



Loganiaceae (with Strychneae), 



5. Asclepiadaceae. 



