II. SYNOPTICAL KEY TO THE OEDEES, &c. 



Division - I. POLYPETALJE. Petals distinct, or nearly so (sometimes wanting). 



A. Stamens hypogynous (free both from the calyx and from the superior ovary). 



* Carpels solitary or distinct. 

 +- Sepals and petals deciduous (rarely persistent in No. 1). Leaves alternate (opposite in climb- 

 el's), or radical : stipules none. 



1. Ranunculaceae, p. 2. Sepals (4 or more), petals (as many and alternate with them, when 



present), stamens (usually numerous), and carpels (1 to many) all distinct and free. 

 Fruit akencs or follicles (in Actual a solitary berry). Mostly herbs. 



2. Berberidaceae, p. 14. Parts of the flower in threes, in opposite ranks, distinct (sepals and 



petals wanting in Achlys, and stamens '.>). Carpel solitary (a berry in Berberis). An- 

 thers opening by valves. Perennial herlis or shrubs, with compound leaves. 



Carpels several, soon distinct, becoming linear torulose several-seeded pods. Sepals 3 : petals 6 : 

 stamens many. Annual ; leaves entire, mostly opposite. Platystemon in Papaveracece. 



Carpel solitary, becoming a spinose pubescent 1-secded nut. Flowers irregular : sepals and pet- 

 als, 5 : stamens 4. Pubescent shrubs, with simple leaves. KRAMERIA in Polytjalacecc. 



■*- 4- Sepals persistent ; petals deciduous. 



Carpel solitary, becoming a globose drupe. Flowers 4-merous. Smooth shrub, with opposite 



entire pungent leaves. CneoridIUM in Rutacae. 

 Carpel solitary, becoming a few- to many-seeded 2-valved or indehiscent pod. Flowers 5-merous : 



stamens 10 or many. Small trees, with bipinnate leaves and small flowers in spikes or 



beads. iIl.MOSK.i-: in Leguminoscc. 

 Follicles several. Fleshy plants, with stamens nearly hypogynous. CltASSULACRa. 

 Follicles 2. Anthers attached to the stigma. Herbs; leaves opposite, entire. AsCLEPIADAORfi. 



+- -i- +- Sepals and petals persistent. 



Carpels 1 oining indehiseciit l 2-seeded pods. Sepals and petals 3 or I : stamens many. Per- 

 ennial aquatic, with peltate leaves. Bisaskxia in Nymphoeacaz. 



* * Ovary compound, with parietal placenta; or seeds covering the cell-walls. 

 +- Capsule many-celled, indehiscent. Sepals and petals persistent. 



3. Nymphaeaceas, p. li>. Parts of the flower indefinite, mostly numerous. Seeds numerous, 



covering the walls of the cells. Perennial aquatic, with cordate entire leaves and soli- 

 tary flowers. 



+■ +- Valves separating from the persistent placenta;. Sepals (2 or 4) and petals deciduous. 



++ Seeds albuminous. 



5. Papaveraceae, p. 18. Sepals 2 or 3, caducous : petals twice as many, alike : stamens nu- 



merous. Capsule 2 several-valved, L -celled (several-celled in Somneya). Hei 

 rarely shrubby), with mostly alternate 1 laves stipules, and often colored juice 



6. Fumariaceae, p. 23. Flowers very irregular sepals 2, small : petals I, in dissimilar pairs : 



stamens 6, diaderphous. Pod I -celled, 2-valwd, several -many-seeded, Perennial herbs, 

 with alternate dissected leaves and no stipules. 



++ ++ Seeds without albumen. Flowers regular. 



7. Cruciferae, p. 25. Sepals and petals I : stamens 6, tetradynamous (rarely I, 2, or none), 



Pod 2-celled, 2-valved, 2 many-seeded (rarely L-celled and indehiscent). Herbs, with 

 alternate Icavi a and no stipules. 



8. Cappnridaceae, p. 19. Sepals and petals 4 : stamens 6 or more, nearly equal Pod2-vnlved, 



1- 2-celled, 1 soveral-s ted. Mostly annual herbs (Itomtrit shrubby), with alternate 



compound leaves, often stipulate. 



