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



pected in such situations. It is to be noted, however, that Mrs. 

 Brandegee also gathered near this same station specimens with 

 narrowly lanceolate leaves up to 6 mm. in breadth and stems up 

 to 7 dm. in height, and that this botanist is of the opinion that 

 gradations into the var. virgata may be found by careful search. 



Var. rigida Gray, Syn. Fl. i. pt. 2, 170 (1884). C. incana 

 var.? Benth., PI. Hartweg. 316 (1849). C. rigida Heller, Muhl- 

 enbergia ii. 256 (1906). Stout and rigid, from a woody base, 

 commonly less than 5 dm. high : tomentum dense, only tardily 

 deciduous, the whole inflorescence then glandular and viscid: 

 leaves spatulate-lanceolate to oval or obovate : heads in an open 

 panicle : involucre campanulate, its bracts with distinct green 

 tips. In dry soil in the mountains from San Jacinto Mt. (Hall, 

 No. 2530) to the Sierras of Tulare Co. (Mrs. Brandegee). 



Var. robusta Greene, Pitt. i. 89 (1887). " Suff rutescent and 

 low, the thick somewhat depressed or ascending branches only a 

 foot [3 dm.] high: panicle green and glandular- viscid, other parts 

 whitish with an appressed tomentum."- San Miguel Island, 

 among high rocks, and also on the top of Prince's Island, both 

 ace. to Greene. 



Var. glomerata Hall, var. nov. Plant somewhat woody at 

 base, about 3 dm. high, the stout stems erect and very rigid : herb- 

 age clothed with a dense white wool which is tardily or not at all 

 deciduous except from the involucres, which are glandular- 

 viscidulous: leaves numerous, appressed, oblong to obovate, 

 entire, all but the lower ones sessile by a broad (sometimes clasp- 

 ing) base, the larger ones 4 cm. long by 1.5 cm. wide : inflores- 

 cence virgate, the heads appearing singly or 2 to 4 together in 

 the axils of the upper scarcely reduced leaves along the simple 

 erect stems : involucre turbinate, 8 or 9 mm. high ; its bracts close- 

 ly imbricated in about 4 series, the slender tips green and spread- 

 ing or recurved: rays about 15, violet, about 8 mm. long: style- 

 appendages with a rather conspicuous tuft of bristles. Oak Glen, 

 Yucaipe Ranch, near Redlands, at 1500 m. alt., Nov., 1903, Rev. 

 Geo. Robertson, no. 117. -The same botanist has gathered a very 

 similar form at Forest Home, San Bernardino Mts., but this has 

 some of the glomerules on distinct lateral shoots. Specimens col- 

 lected at Tehachapi, Kern Co., by Miss Alice Eastwood, Sept. 29, 



