132 University of California Publications in Botany. IT OL - 3 



collected by Parish, Great a, Braunton, etc., as well as the cultural 

 experiments carried on by Dr. Davidson (1. c.) furnish conclusive 

 evidence that H. Parishii and H. Oliveri are in no way distinct. 

 My own no. 2612 from Strawberry Valley, San Jacinto Mt., may 

 belong here, or may be a form of H. Calif ornicus, but is much too 

 immature to be positively determined. 



5. H. Californicus DC., Prodr. v. 589 (1836). 



Erect, 1 to 3 m. or more high, with somewhat tuber-like roots, 

 the stems scabrous only toward the inflorescence : leaves scabrous 

 on both sides, lanceolate or linear-lanceolate, some of the lower 

 ones ovate, usually entire, 1 to 2 dm. long including the petiole : 

 heads in a terminal cymose panicle, the peduncles leafy-bracteate : 

 proper involucre 10 or 12 mm. high ; bracts imbricated, lanceolate, 

 the outer ones tapering into spreading tail-like tips and some- 

 times 1.5 or 2 cm. long, all scabrous : receptacular bracts obtuse : 

 rays about 15 to 20, 2 cm. or more long : achenes glabrous : pappus 

 of 2 or 3 lanceolate paleae. 



National Ranch, San Diego, JuL, 1899, and Tehachapi, Mrs. 

 Brandegee; along streams to middle California. 



6. H. gracilentus Gray, Proc. Am. Acad. xi. 77 (1876). 

 Rather strict, erect, 6 to 12 dm. high, the stems rough-his- 



pidulous or becoming smooth above : leaves short-hispid on both 

 sides, entire or obscurely denticulate ; the lower cauline ovate- 

 lanceolate, contracted to a short margined petiole, 15 cm. or less 

 long ; the upper ones narrowly lanceolate or linear, entire : heads 

 terminal on the elongated branches of the inflorescence; the 

 peduncles much exceeding the upper leaves : involucre 7 to 10 

 mm. high, shorter than the disk; the bracts imbricated, ovate, 

 either abruptly or gradually contracted to the acute apex, all 

 puberulent and the outer commonly ciliolate : receptacular bracts 

 with pubescent obuse or acute tips: rays 12 to 16, 2 to 2.5 cm. 

 long. 



In dry gravelly or rocky soil on hillsides and in canon bot- 

 toms of the Upper Sonoran Zone west of the mountains, from Mt. 

 Gleason and Newhall, Los Angeles Co., to Ramona, San Diego Co. ; 

 near Claremont, Baker, nos. 3692, 4719 ; etc. 



