KEY. 117 



15. Seeds crested, borne on 2 thin placentae between the 

 two valves of the linear pod. Leaves pinnatifid, the lobes 

 irregularly toothed. Flowers yellow, in axillary peduncled 

 umbels. Chelidonium majus, L. 



Seeds crestless, partly sunk into a spongy false parti- 

 tion between the valves of the very long and linear pod. 

 Leaves pinnatifid, or sinuate-lobed and toothed, the upper ones 

 clasping by their cordate base. Flowers solitary, yellow. 

 Herb, glaucous. Glaucium luteum, Scop. 



16. Trees. Peduncle of each flower-cluster adnate to 

 the midrib of a large, leaf -like bract Vo 



No trees 17 



ly. Leaves palmately compound, twice to thrice ternate. 

 Flowers white, in oblong or much elongated racemes. Sepals 

 deciduous 18 



Leaves simple, or in one genus pitcher-form 19 



18. Petals spatulate, long-clawed, 4-8. Raceme short, 

 oblong. Fruit a berry, white or red. Actaea spicata, L. 



Petals stamen-like, 2-horned at the apex, 1-8, Fruit 

 a pod. Cimicifuga (45). 



19, Leaves hollow, pitcher-shaped. Scape naked, bearing 

 a solitary purple or yellow flower. Sarracenia. 



Leaves not hollow 20 



30. Sepals 3, with 2 bracts outside, or bractless 21 



Sepals 4-6 (or apparently 2). Petals either 4 or 



numerous , 23 



31. Sepals 3, with 2 bracts outside, and larger than they. 

 Petals 5. Fruit a 3-valved capsule 22 



Sepals 3, with no bracts outside. Fruit a prickly 



pod 13 



_ 88. Sepals united at the base. The 1 -celled pod 3- to 6- 

 seeded. Low shrubs, much branched. Leaves awl- 

 shaped or thread-form, minute. Flowers small, yellow, along 

 the upper part of the branches. Hudsouia. 



Sepals not united at the base. The 1-celled pod 3- 

 valved, triangular. Flowers of 2 sorts; the primary, ter- 

 minal or dichotomal ones with large yellow petals and nu- 

 merous stamens ; the later, in axillary glomerules, with 

 small, or no petals, and only 3-10 stamens. Leaves lance- 

 oblong. Capsule with many seeds in the primary flowers, 

 and only few in the secondary ones. Helianthemum. 



