1472 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 



1. Carphochaete wislizeni A. Gray, Mem. Amer. Acad. n. ser. 4: 65. 1849. 

 Chihuahua to Durango; type from Cosihuiriachi, Chihuahua. 

 Suffrutescent, much branched at base, 20 to 35 cm. high, resiniferous-glandular; 



leaves linear, 3 to 6 cm. long, 1 to 3 mm. wide; heads flattish-panicled or rarely 

 solitary, 2 to 2.5 cm. high, purple; achenes about 7 mm. long, exceeded by the 

 pappus. 



2. Carphochaete grahami A. Gray, PI. Wright. 1 : 89. 1852. 

 Jalisco to Mexico; type from Mexico, without definite locality. 

 Suffrutescent, many-stemmed, branched above, about 40 cm. high; leaves 



elliptic to eUiptic-spatulate, about 2.5 cm. long, 3 to 5 mm. wide, the upper 

 alternate and smaller; panicle open; involucre strongly graduated, the outer 

 phyllaries obtuse or rounded, mucronate, the inner acute. 



3. Carphochaete bigelovii A. Gray, PI. Wright. 1: 89. 1852. 



Chihuahua. New Mexico and Arizona; type from the boundary between 

 New Mexico and Mexico. 



Suffrutescent, branching, 30 to 50 cm. high; leaves linear-elliptic to spatulate- 

 elliptic, 1.5 to 3 cm. long, 2 to 5 mm. wide, with fascicles of smaller ones in the 

 axils; heads chiefly sessile, 2.5 to 3 cm. high, the flowers purplish-tinged; phyl- 

 laries narrowly oblong-lanceolate, acute to acuminate, densely glandular- 

 punctate and sparsely puberulous. 



4. Carphochaete schaffneri Greenm. Proc. Amer. Acad. 40: 34. 1904. 

 San Luis Potosi; type from Valley of San Luis Potosi. 



Suffrutescent, slender, branched, 20 to 35 cm. high; leaves linear, 2 to 5 cm. 

 long, 2 to 3 mm. wide; heads pedunculate, the flowers purplish; phyllaries as in 

 the last, but densely stipitate-glandular. 



20. COLEOSANTHUS Cass. Bull. Soc. Philom. Paris 1817: 67. 1817. 

 Reference; Robinson, A monograph of the genus Brickellia, Mem. Gray 

 Herb. 1: 1-151. 1917. 



Herbs or shrubs; leaves opposite or alternate; heads usually panicled, small to 

 large, white to purple, rarely ochroleucous; involucre cylindric or campanulate 

 the phyllaries usually multiseriate, dry, striate, the outermost rarely herbaceous; 

 achenes prismatic, 10-ribbed (very rarely 5 to 8 or 20-ribbed) ; pappus of numerous 

 smooth or barbellate, rarely subplumose setae. 



The name "hierba del carbonero" is reported for some undetermined species 

 of the genus. 

 Pedicels gemmiparous; heads 4 to 20-flowered. 



Leaves linear or narrowly lanceolate; heads 4 to 12-flowered. 



Leaves entire; heads 6 to 12-flowered 1. C. squamulosus. 



Leaves spinulose-serrate; heads 4 or 5-flowered 2. C. spinulosus. 



Leaves ovate; heads about 20-flowered 3. C. vernicosus. 



Pedicels not gemmiparous; heads 8 to 100-flowered. 

 Heads large, 28 to 62-flowered. 

 Pedicels stipitate-glandular. 



Leaves sessile or subsessile; outer phyllaries sometimes dentate. 



42. C. argutus. 

 Leaves petiolate; phyllaries not dentate. 

 Petioles 3 to 4 mm. long. 



Phyllaries all acute or acutish 43. C. brandegei. 



Middle and inner phyllaries very obtuse 44. C. macromerus. 



Petioles usually 1 to 2.5 cm. long. 



Leaves griseous-tomentose beneath, crenate 45. C. peninsularis. 



Leaves merely puberulous and green beneath, entire or repand. 



46. C. rhomboideus 



