BERBERIDACEAE, 



Vol II. 



I. Odostemon Aquifolium (Pursh) 

 Rydb. Trailing Mahonia. Fig. 1957. 



Berberis Aquifolium Pursh, Fl. Am. Sept. 219. 



1814. 

 Berberis repens Lindl. Bot. Reg. pi. I176. 1828. 

 Mahonia repens Don, Gard. Diet, i: 118. 1831. 

 Odostemon Aquifolium Rydb. Bull. Torr. Club 



33: 141. 1906. 



A low trailing glabrous shrub. Leaves 

 petioled, pinnate; leaflets 2-7, ovate, oval, or 

 nearly orbicular, obtuse or acute at the apex, 

 oblique and obtuse, truncate or slightly cor- 

 date at the base, sessile, thick, persistent, 

 finely reticulated, dentate with spine-bearing 

 teeth, i'-2' long; racemes several, erect, 

 dense, terminal, many-flouered ; flowers yel- 

 low, 3"-4" broad, short-pedicelled; bracts 

 ovate, persistent; berry globose, blue or pur- 

 ple, about 3" in diameter. 



Western Nebraska and throughout the Rocky 

 Mountain region, extending to Arizona and Brit- 

 ish Columbia. Holly-leaf barberry. Grape-root. 

 Rocky mountain or Oregon grape. April-May. 



3. CAULOPHYLLUM Michx. FL Bor. Am. i : 205. 1803. 



An erect perennial herb, with thickened rootstocks, and ternately compound leaves. 

 Sepals 6, oblong, the calyx 3-4-bracted. Petals 6, smaller, cucullate, opposite the sepals. 

 Stamens 6; anthers oblong, dehiscent by valves. Pistil i; style short; stigma lateral ; ovules 

 2, ripening into large globose stipitate blue seeds, resembling berries, which in growth soon 

 rupture the membranous caducous pericarp. [Greek, stem-leaf.] 



Two known species ; the following typical one of eastern and central North America, the other 

 of eastern Asia. 



I. Caulophyllum thalictroides (L.) Michx. 

 Blue Cohosh. Fig. 1958. 



Lcontice thalictroides L. Sp. PI. 312. 1753. 



C. thalictroides Michx. FI, Bor. Am. i : 205. 1803. 



Glabrous, glaucous when young, i°-3° high, 

 with 2 or 3 large sheathing bracts at the base, 

 a large tritcrnate nearly sessile leaf near the 

 summit, and generally a smaller similar one near 

 the base of the inflorescence. Divisions of the 

 leaves long-petioled, ternately or pinnately com- 

 pound, the ultimate segments thin, I'-i long, 

 oval, oblong or obovate, 3-5-lobed near the apex; 

 panicle terminal, 2'-3' long; flowers greenish pur- 

 ple, 4"-6" broad ; seeds globular. 4" in diameter, 

 glaucous, borne on stout stalks about 3" long. 



In woods, New Brunswick to South Carolina, west 

 to Manitoba, Tennessee, Nebraska and Missouri. 

 Ascends to 5000 ft. in North Carolina. April-May. 

 Blueberry. Blue-ginsing. Blueberry-, squaw- or 

 papoose-root. 



4. DIPHYLLEIA Michx. Fl. Bor. Am. i : 203. 1803. 



Perennial herbs with horizontal rootstocks, large peltate leaves, and cymose white flow- 

 ers. Sepals 6, petaloid, falling away early. Petals 6, flat. Stamens 6 ; anthers dehiscent by 

 valves. Pistil i ; ovules few, arranged in 2 rows on one side of the ovary. Fruit a berry. 

 Seeds oblong, curved. [Greek, double-leaf.] 



A genus of 2 species, the typical one nati\'e of eastern North America, the other of Japan. 



