12 BERBERIDACE^. (BARBERRY FAMILY.) 



either white or red, in a loose, rather elongated raceme. — From the mountains 

 westward. 



Var. rubra, Ait. Raceme ovate: petals rhombic-spatulate, much shorter 

 than the stamens : berries cherry-red. — From the mountains eastward to the 

 AtUntic. 



Order 2. BERBEBIDACE.E. (Barberry Family.) 



Our species are shrubs with alternate simple or com pound leaves and 

 no stipules ; the flower parts are distinct and free, and are opposite to 

 each other instead of alternate ; the anthers open by uplifted valves. — 

 Sepals and petals imbricated and deciduous. Pistil one, simple ; style 

 short or none. 



1. B E R B E R I S, L. Barberry. 



Sepals 6, colored like the petals, with 3 or 6 closely appressed hractlets. 

 Petals 6, yellow. Stamens 6. Stigma circular and peltate. Fruit a berry 

 with 1 to 3 seeds. — Shrubs with yellow wood and the flowers in clustered 

 bracteate racemes. 



1. B. repens, Lindl. A low shrub less than a foot high: leaflets 3 to 7, 

 ovate, acute : racemes few, terminating the stems. — Throughout the Rocky 

 Mountains. This is the B. Aquifolium of FI. Colorado and the various Western 

 Reports. B. Aquifolium ranges farther west, especially in Oregon and Wash- 

 ington, and is a much larger shrub, with clusters of racemes. 



2. B. Fendleri, Gray. Much taller (3 to 6 feet), icith branches smooth 

 and shining as if varnished: leaves entire or irregularly spinulose-serrate : 

 racemes pendulous, densely flowered : calyx with conspicuous red bracts. — PI. 

 Fendl. 5. S. W. Colorado, southward, and westward to S. California. 



Order 3. NYMPHJEACEyE. (Water-Lily Family.) 



Aquatic herbs, with horizontal trunk-like rootstocks or sometimes 

 tubers ; the leaves (in ours) deeply cordate ; flowers with all the parts 

 distinct and free, solitary and axillary on long peduncles; stamens 

 numerous. 



1. N U P H A R, Smith. Yellow Pond-Lilt. Spatter-Dock. 



Sepals 5 to 12, persistent, usually yellow within and partly green without. 

 Petals and stamens short and numerous, densely crowded around the ovary. 

 Ovary 8 to 20-ceIled, crowned by a radiate stigma, the cells many-seeded. — 

 In shallow water, sending up large leathery leaves which are usually upright, 

 but sometimes floating. 



1. N. advena, Ait. Emersed and erect leaves thick, varying from 

 roundish to ovate or almost oblong in outline, the sinus open, or closed, or narrow : 

 sepals 6 : petals liTcp the stamens, thick and fleshy, truncate : f'uit ovoid. — 

 Abundant in the Yellowstone Park, and extending northward and eastward 

 across the continent. 



