28 SPRING FLOWERS. 



[IL-GENEKA OE FAMILIES.] 



1. Ranunculaceous Plants. RANUNCULACE^E. 



* Carpels several, short, one-seeded ; (flowers regular.) 

 t Sepals 4-5 or more, often petal-like, hut no real petals. 



(1) Anemone flowers with a three-leaved involucre. [For the 



species of the several genera, see page 42 and sequel.] 



ft Petals 5 or more, usually more conspicuous than the 

 sepals. 



(2) Myosurus petals small, with a tubular claw. 



(3) Ramuiculus petals with a small scale or hollow near the 



** Carpels several, many-seeded ; (flowers regular) 



(4) Caltha sepals five, large ; petals none. 



(5) Helleborus sepals five, large ; petals small, tubular. 



*** Carpels solitary, many-seeded. 



(6) Actsea flowers nearly regular, small ; fruit a berry. 



2. Berberidaceous Plants. BERBERIDACE^. 



(7) Berberis sepals, petals, and stamens six each. 



3. Cruciferous Plants. CRUCIFERJE. 



* Pod siliquose, much (at least 3 or 4 times) longer than 

 broad. 



t Calyx with 2 evident sacs or pouches at the base. 



(8) Cheiranthus pod compressed; stigmas two-lobed or capi- 



tate. 



ft Calyx equal at the base. 



(9) Barbarea pods linear, four-angled ; the valves with a pro- 



minent rib. 



