BERBERIDACE.*:. (BARBERRY FAMILY.) 15 



2. MENISPERMUM, L. MOONSEED. 



Flowers dioecious. Sepals and petals 4 -8. Stamens 12- 24. Anthers 4- 

 celled. Ovaries 2-4. Stigma dilated, spreading. Otherwise like the 

 preceding. 



1. M. Canadense, L. Glahrous ; leaves long-petioled, round-cordate, 

 entire, angular, or lobed, slightly peltate at the base, glaucous beneath ; pan- 

 icles supra-axillary, single or in pairs, drooping; flowers small, white. 

 River banks, chiefly in the upper districts. July. 



3. CALYCOCARPUM, Nutt. 



Flowers dioecious. Sepals 6. Petals none. Stamens 12. Anthers 2- 

 celled. Ovaries 3, 1-ovuled. Stigma radiate, many-cleft. Drupe oval. Nut 

 excavated on the inner face. Embryo curved, foliaceous. 



1. C. Lyoni, Nutt. River banks in the upper districts. May -June. 

 Pubescent ; leaves round-cordate, 3 - 7-lobed, acuminate ; racemes compound, 

 supra-axillary ; flowers white ; drupe globose. 



ORDER 5. BERBERIDACE^E. (BARBERRY FAMILY.) 



Herbs or shrubs, with alternate mostly divided leaves, and perfect 

 regular hypogynous flowers. Sepals and petals in two or more rows 

 of 2-4 each, imbricated in the bud, deciduous. Stamens opposite 

 the petals. Anthers 2-celled, opening by uplifted valves (or length- 

 wise in Podopltyllum). Fruit baccate or capsular. Embryo in the 

 axis of fleshy or horny albumen. 



Synopsis. 



* Anthers opening by uplifted valves. 



1. BERBERIS. Stamens G. Leaves bristly-serrate. Shrubs. 



2. CAULOPHYLLUM. Stamens G. Leaves compound. Herb. 



3. DIPHYLLEIA. Stamens G. Leaves peltate, deeply 2-cleft and lobed. Herb. 



4. JEFFERSONIA. Stamens 8. Scape 1-ttowered. Leaves 2-parted. Herb. 



* * Anthers opening longitudinally. 



5. PODOPHYLLUM. Stamens 12 or more. Flower solitary in the fork of the two peltate 



lobed leaves. 



1. BERBERIS, L. BARBERRY. 



Sepals 6, orbicular. Petals 6, obovate, often biglandular near the base. 

 Stamens 6, irritable. Stigma circular, depressed. Fruit a 1 - 9-seeded berry. 

 Seeds erect. Shrubs with yellow wood. Leaves bristly serrate, often reduced 

 to branching spines. Flowers racemose, yellow. Berries acid. 



1. B. Canadensis, Pursh. Shrub smooth, spiny, 2 -3 high; leaves 

 obovate, bristly-serrate ; racemes 6 - 8-flowe ed ; petals notched ; berries oval, 

 red. Mountains of N. Carolina. 



2. CAULOPHYLLUM, Michx. BLUE COHOSH. 



Sepals 6. ovate-oblong. Petals 6, thick and gland-like, shorter than the 

 sepals. Stamens 6. Style short, stigmatic within. Ovary thin, early rup- 



