pjeonia. BERBERIDACEjE.- 27 



berberis . 



cated, persistent. Petals 5-10 or more, situated with the sta- 

 mens 'on the fleshy perigynous disk that is adnate to the sepals 

 or concave receptacle. Stamens numerous. Carpels few be- 

 coming coriaceous many-seeded follicles. Style short or none. 

 Seeds anatropous, oval or oblong, naked at base or the very 

 short fleshy funiculus cupulate; embryo straight or slightly 

 arcuate. 



P. Browiiii Doug, in Hook. Fl. i, 27. Glabrous and glaucous, stems 

 ascending or at length decumbent, 1-2 feet long: leaves thick, leaf- 

 lets ternatelv dissected into oblong or linear lobes ; sepals green, mostly 

 unequal: petals scarcely larger than the sepals, thick and leathery, dark 

 dull red : follicles oblong, an inch or more long : seeds round or oblong 2 

 lines in diameter, black and shining. Stony hillsides, Brit. Columbia 

 to California. 



Order IT. BERBERIDACEiE Endl. Gen. 851. 



Herbs cr shrubs with compound or divided leaves without 

 stipules and perfect, hypogynous flowers. Bracts sepals petals 

 and stamens 6 each f sepals and petals wanting, and stamens 9 

 or more in Achlys): Anthers 2 celled opening by uplifted 

 valves that are hiiiged at the top. Calyx and corolla imbricated 

 in the bud, deciduous, both usually colored Pistil 1, of a 

 single carpel. Style short or none. Seeds anatropous, with 

 small or minute embryo in firm-fleshy or horny albumen. 



* Flowers complete : stamens 6, mostly short. 



1 Berberis. Shrubs with rigid oddpinnate leaves; flowers yellow, in 

 clustered racemes : fruit a few-seeded berry. 



2 Vancouveria. Herbs with ternately compound leaves : flowers white or 

 yellow in a panicle : fruit a follicle. 



* * Flowers without sepals or petals : stamens 9 or more. 

 3. Achlys. Flowers spicate on a scape, without bracts, sepals or petals. 

 Herbs with 3-parted leaves. 



1 BERBERIS, Tourn. Inst. 614, t. 385, L. Gen. n. 442. 



Smooth shrubs with yellow wood, pinnate leaves, yellow flow- 

 ers in clustered bracketed racemes, and oblong or globose, acid, 

 dark blue berries. Sepals 6, petal-like, with 6 closely appressed 

 bractlets in 2 rows. Petals 6, opposite the sepals, usually 2-gland- 

 ular at base. Stamens 6, opposite the petals. Stigma peltate. 

 Fruit a 1 -celled berry, with 1-3 seeds. Ours all of 



§ Mahoxia T. & G. FL i, 50. Leaves evergreen, all evolute, 

 (none reduced to spines) and 3- toseveral-foliolate ; petioles artic- 

 ulated at the insertion of the leaflets: leaflets thick, coriaceous, 

 spiny-toothed : filaments usually 2-toothed at the summit. 



* Leaflets pinnately veined. 



B. pumila Greene Pitt, ii, 162. A few inches to a foot high, stout and 

 rigid, erect from the base: leaves very thick-coriaceous: leaflets 1-5, the 

 terminal one round-ovate, the lateral ones obliquely ovate, all coarsely 

 toothed, the teeth rigidly spinescent, conspicuously reticulate-veined on 

 both faces, pale and glaucous beneath, deep but dull green and glauces- 



