138 University of California Publications in Botany. [VOL. 3 



volucre about 1 cm. high, equalling or shorter than the disk ; its 

 bracts linear-lanceolate, acute or the outer very obtuse : achenes 

 nearly glabrous, the body oblanceolate, 1 cm. long ; wings narrow 

 at base but becoming very broad above, the whole fruit therefore 

 obovate : pappus-awns slender, longer than the body of the achene, 

 the base coalescent with the wing. 



Near Arch Beach, Orange Co., May, 1903, Mrs. M. F. Brad- 

 shaw; Dobbs Camp, Mill Creek Canon, San Bernardino Mts., at 

 2200 m. alt. (Transition Zone), Rev. Geo. Robertson (det. by 

 Dr. B. L. Robinson) ; Sauzal, Lower California, Orcutt; first 

 collected at All Saints Bay (Ensenada), Lower California, by 

 Orcutt, no. 1233. 



2. V. encelioides exauriculata Rob. & Greenm., Proc. Am. 

 Acad. xxxiv. 544 (1899). 



Three to 6 dm. 'high, from a straight taproot, cinereous or 

 canescent : leaves whitened below with appressed hairs, green and 

 somewhat scabrous above, narrowly to broadly ovate or cordate ; 

 the blade mostly 5 to 10 cm. long, commonly dentate with salient 

 teeth; petioles slender, or those of the upper leaves provided on 

 each side with a wing which broadens at base into a semi-ovate 

 auricle : outer involucral bracts oblong or lanceolate, about 1 cm. 

 long: rays 12 to 15, deeply tridentate, about 1 cm. long, often 

 orange-colored: achenes rather densely pubescent, obovate, 

 broadly winged; the wrings becoming corky-thickened, obtuse at 

 apex : awns of the pappus short, setiform. 



Fairly common on low ground from San Fernando, Los An- 

 geles, and San Bernardino to Colorado and Mexico. Probably 

 an introduced plant with us. This variety can be distinguished 

 from typical V. encelioides only by the complete or partial reduc- 

 tion of the auriculate expansions at the base of the petiole and 

 by the broad summit of the wings to the achenes. Specimens 

 with none of the petioles at all dilated at base have involucres 

 considerably longer than the disk. 



3. V. australis (H. & A.) Baker, in Mart., Fl. Bras. vi. pt. 3, 

 215 (1884). Ximenesia microptem DC., Prodr. v. 627 (1836). 

 X. australis H. & A., in DC., 1. c. vii. 291 (1838). Not Verbesina 

 microptera DC., Prodr. v. 616 (1836). 



