POLYPETALOUS EXOGENOUS PLANTS. 151 



the fertile flower. Ovaries 3-G, 1-celled, 1-ovuled. Stigma 

 subiiliite, recurved. Drupe baccate, canipylotropus. Nid 

 reniforin, rugose. Seed conformed to the cavity of the 

 nut. Embryo semicircular. 



Leaves ovate or slightly cordate, entire or angularly 

 lobed. 



C. Carolinian A, DC. Pubescent. Stem twining, 

 10°-15° long. Leaves very acute, rather rigid. Racemes 

 of the fertile flowers simple; of the sterile, compound. 

 Floiuers whit-e. Dr^cjoe red. Wet ravines. Valley of the 

 Picos and Kio Grande. 



5. BARBERKY FAMILY. Order, Berberidace^. 



Herbs or shrubs, with alternate, usually exstipulate, sim- 

 ple or compound leaves. ' . 



Sepals and j^etals in fours, sixes, or eights. Stamens 

 the same number as petals, one before each petal (on the 

 receptacle). Anthers opening by recurved valves. 



Pistil one. Style short or none. Fruit a berry or cap- 

 sule, seeds several, albuminous. 



SYNOPSIS. 



* Anthers ox>ening by uplifted valves. 

 Stamens 6. Leaves bristly-serrate. Shrubs Bekbeuis. 



6. compound. Herbs Caulophtllum. 



6. peltate, deeply two-cloft, and lobed. Herb.DimTLLEiA. 



** Anthers opening longitudinally. 

 Stamens 12 or more. Flowers solitary in the fertile, of two 



peltate, lobed leaves Podophyllubi. 



BERBERIS. Barberry. 



Sepals 6, orbicular. Petals 6, obovate, often biglandular 

 near the base. Stamens 6, irritable. Stigma circular, de- 

 pressed. Fruit a 1-9-seeded berry. Seeds erect. Shrubs 



