420 



COMPOSITAE. 



[Voi,. III. 



i. Brauneria purpurea (L,.) Britton. 



Purple Cone- flower. Black Sampson. 



(Fig. 3895.) 



Rudbeckia purpurea L- Sp. PI. 907. 1753. 

 Echinacea purpurea Moench, Meth. 591. 1794. 

 Brauneria purpurea Britton, Mem. Torn Club, 

 5: 334- i894- 



Stem glabrous, or sparingly hispid, usually 

 stout, 2-5 high. Lower and basal leaves 

 slender-petioled, ovate, mostly 5-nerved, acute 

 or acuminate at the apex, abruptly narrowed or 

 rarely cordate at the base, commonly sharply 

 dentate, y~8 / long, 1'-$' wide; petioles mostly 

 winged at the summit; uppermost leaves lan- 

 ceolate or ovate-lanceolate, 3-nerved, sessile or 

 nearly so, often entire; rays 12-20, purple, 

 crimson, or rarely pale, i/^ / -3 / long, spreading 

 or drooping. 



In moist, rich soil, Virginia to Alabama, west to 

 Illinois, Kentucky and Louisiana. Called also 

 Red Sunflower. July-Oct. 



2. Brauneria pallida (Nutt.) 



Britton. Pale Purple Cone-flower. 



(Fig. 3896.) 



Rudbeckia pallida Nutt. Journ. Acad. Phila. 7: 



77. 1834. 

 Echinacea angustifolia DC. Prodr. 5: 554. 1836. 

 Brauneria pallida Britton, Mem. Torr. Club, 5: 



333- 1894. 



Stem hispid, slender, often simple, i-3 

 high. Leaves lanceolate, oblong-lanceolate, 

 or linear -lanceolate, acute and about equally 

 narrowed at each end, strongly 3-nerved and 

 sometimes with an additional pair of marginal 

 less distinct nerves, entire, 3 / -S / long, \"-\i ff 

 wide, the lower and basal ones slender- 

 petioled, the upper short-petioled or sessile; 

 heads and flowers similar to those of the pre- 

 ceding species, but the rays usually shorter 

 and narrower, often pale. 



In dry soil, especially on prairies, Illinois to 

 Alabama, west to Minnesota, the Northwest Ter- 

 ritory, Nebraska and Texas. July-Oct. 



63. BORRICHIA Adans. Fam. PI. 2: 130. 1763. 



Fleshy, more or less canescent, branching shrubs of the sea-coast, with opposite entire or 

 denticulate, cuneate oblong spatulate or obovate, 1-3-nerved leaves, and terminal large long- 

 peduncled heads of both tubular and radiate yellow flowers. Involucre hemispheric, its bracts 

 slightly unequal, imbricated in 2 or 3 series, the inner ones coriaceous. Receptacle convex, 

 chaffy, the chaff rigid, concave, subtending or enwrapping the disk-flowers. Ray-flowers pis- 

 tillate, fertile. Disk-flowers perfect, the corolla tubular, 5-toothed, the style-branches 

 elongated, hispid. Anthers dark-colored, entire at the base, or minutely sagittate. Achenes 

 of the ray-flowers 3-sided, those of the disk-flowers 4-sided. Pappus a short dentate crown. 

 [Named for Olaf Borrick, a Danish botanist.] 



About 5 species, natives of America. In addition to the following, another occurs in South 

 Florida. 



