FLOWERING PLANTS AND FERNS OF ARIZONA 887 



7. Eupatorium rothrockii A. Gray, Syn. Fl. I 2 : 102. 1884. 



Eupatorium rothrockii var. shrerei Robinson, Amer. Acad. Arts 

 and Sci. Proc 54: 256. 1918. 



Mountains of southern Apache, Graham, Cochise, and Pima 

 Counties, 6.500 to 7,500 feet, chiefly in pine forest, July to October, 

 type from Mount Graham (Rothrock 740, 741), type of var. she eel 

 from Ramsey Canyon, Huachuca Mountains (Shreve 5017). South- 

 ern New Mexico and southeastern Arizona. 



8. Eupatorium herbaceum (A. Gray) Greene, Pittonia 4: 279. 1901. 



Eupatorium ageratijolium var. ? herbaceum A. Gray, PL YVrisfht. 



2: 74. 1853. < 

 Eupatorium occidentale var. arizonicum A. Gray, Syn. Fl. 



I 2 : 101. 1884. 

 Eupatorium arizonicum Greene, Pittonia 4: 280. 1901. 



Near Holbrook (Navajo County), Kaibab Plateau (Coconino 

 County), Hualpai Mountain (Mohave County), southward to the 

 mountains of Cochise, Santa Cruz, and Pima Counties, 5,000 to 

 9.000 feet, mostly in open pine forest, June to October. Utah, 

 New Mexico, Arizona, and northern Mexico. 



Flowers white, the plant fragrant in drying. 



Eupatorium texense (Torr. and Gray) Rydb., which is probably E. havanense 

 H. B. K., was listed by Rydberg 57 as ranging from Colorado and Texas to Ari- 

 zona. The Arizona record is apparently based on error, as Rydberg wrote 

 (personal communication) that there is no specimen in the herbarium of the 

 New York Botanical Garden and that he does not think the species is found in 

 Arizona. Possibly a specimen of E. herbaceum was mistaken for it in the original 

 record. 



5. CARPHOCHAETE 



Low branching shrub; leaves opposite, sessile, entire, punctate, 

 linear-elliptic to spatulate-eUiptic, 15 to 30 mm. long, with axillary 

 fascicles; heads cylindric, about 25 mm. high, few-flowered, the 

 corollas purplish tinged; phyllaries rather few, narrow, unequal, 

 subherbaceous, acute to acuminate, densely glandular-punctate; 

 achenes linear, 8- to 10-ribbed; pappus of about 12 narrowly scarious- 

 margined, linear-attenuate awns, barbellate above. 



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



Mountains of southern Apache, Greenlee, Gila, Cochise, Santa 

 Cruz, and Pima Counties, 4,000 to 6,000 feet, rocky slopes and 

 canyons, March to Jul}'. Western Texas to southern Arizona and 

 Chihuahua. 



The plant is browsed. 



6. BRICKELLIA. 58 Brickellbush 



Herbs or shrubs; leaves opposite or alternate; heads small to 

 medium-sized, discoid, usually whitish, solitary or panicled; involucre 

 usually definitely graduated, the phyllaries generally dryish and 

 striate; achenes 10-ribbed (sometimes only 5-ribbed in B. fendL 

 pappus of numerous capillary bristles (plumose only in B. brachyphylla) . 



; " Rydberg, p. a. flora of the rocky mountains and adjacent plains. 1917. (See p 8 

 ^Reference: Robinson, B. L. a monograph of the genvs brickellia. Gray Herbarium Mem. 1: 

 1-151. 1917. 



